Blog: Challenge Questions

Page 1 of 10: « First 1 2 3 Next > Last »

Blog Entries

Sort Threads   Create Date / Rating Title / Blogger Last Post Comments Views
10/01/2026 12:00 AM Breaking up a horseshoe (Oct. 2026 Challenge Question)
Pathfinder Tags: challenge question
Last post: 10/01/2026 11:22 PM
3 643
08/31/2026 12:00 AM The Line Illusion (September 2026 Challenge Question)
Pathfinder Tags: challenge question
Last post: 09/05/2026 6:50 AM
5 564
07/31/2026 12:00 AM Chess Test (August 2026 Challenge Question)
Pathfinder Tags: challenge question
Last post: 08/28/2026 8:30 AM
22 443
06/30/2026 12:00 AM Friendly Wager (July 2026 Challenge Question)
Pathfinder Tags: challenge question
Last post: 08/10/2026 11:28 AM
12 673
05/31/2026 12:00 AM Sensors and Senseless (June 2026 Challenge Question)
Pathfinder Tags: challenge question
Last post: 06/01/2026 1:41 PM
3 352
04/30/2026 12:00 AM Who Watches the Watchmen? (May 2026 Challenge Question)
Pathfinder Tags: challenge question
Last post: 05/29/2026 11:09 AM
17 646
03/31/2026 12:00 AM Climbing a Ladder in a Pipe (April 2026 Challenge Question)
Pathfinder Tags: challenge question
Last post: 04/29/2026 11:47 AM
19 675
02/28/2026 12:00 AM Map of the Mystery Maze (March 2026 Challenge Question)
Pathfinder Tags: challenge question
Last post: 04/17/2026 3:56 PM
9 1034
01/31/2026 12:00 AM Like Ships Passing (February 2026)
Pathfinder Tags: challenge question
Last post: 02/19/2026 3:07 AM
19 657
12/31/2025 12:00 AM Winter Wonders (January 2026 Challenge Question)
Pathfinder Tags: challenge question
Last post: 02/25/2026 5:53 PM
6 716
11/30/2025 12:00 AM Minesweepers Mapping (December 2025 Challenge Question)
Pathfinder Tags: challenge question
Last post: 12/13/2025 11:21 AM
23 514
10/31/2025 12:00 AM Inside the Wire (November 2025 Challenge Question)
Pathfinder Tags: challenge question
Last post: 11/23/2025 3:44 PM
25 684
09/30/2025 12:00 AM Steam Train Showtime (Oct. 2025 Challenge Question)
Pathfinder Tags: challenge question
Last post: 12/28/2025 6:00 AM
5 708
08/31/2025 12:00 AM Algebraic Enigma (September 2025 Challenge Question)
Pathfinder Tags: challenge question
Last post: 09/23/2025 11:58 AM
5 1044
07/31/2025 12:00 AM 10 Questions to Find a Number (August 2025 Challenge Question)
Pathfinder Tags: challenge question
Last post: 08/13/2025 4:48 PM
13 565
06/30/2025 12:00 AM Pizza Dividends (July 2025 Challenge Question)
Pathfinder Tags: challenge question
Last post: 07/22/2025 9:30 AM
4 490
05/31/2025 12:00 AM Air Show Show-Off (June 2025 Challenge Question)
Pathfinder Tags: challenge question
Last post: 06/25/2025 3:51 PM
5 478
04/20/2025 12:00 AM The Will of A Will (May 2025 Challenge Question)
Pathfinder Tags: challenge question
Last post: 05/27/2025 3:20 PM
14 502
03/31/2025 12:00 AM Fire Spiral (April 2025 Challenge Question)
Pathfinder Tags: challenge question
Last post: 05/01/2025 7:04 AM
9 611
02/28/2025 12:00 AM A Cat Dreams of Mice (March 2025 Challenge Question)
Pathfinder Tags: challenge question
Last post: 05/13/2025 10:29 AM
17 478
01/31/2025 12:00 AM Snowball Fight Strategy (February '25 Challenge Question)
Pathfinder Tags: challenge question
Last post: 02/21/2025 10:35 AM
3 555
12/31/2024 12:00 AM Transatlantic Encounters (January 2025 Challenge Question)
Pathfinder Tags: challenge question
Last post: 01/23/2025 10:07 AM
11 748
11/30/2024 12:00 AM Inconsistent Cash (December 2024 Challenge Question)
Pathfinder Tags: challenge question
Last post: 12/19/2024 7:23 AM
14 646
10/31/2024 12:00 AM Getting Dressed in the Dark (Nov. 2024 Challenge Question)
Pathfinder Tags: challenge question
Last post: 12/30/2024 2:37 PM
13 595
09/30/2024 12:00 AM Imbibition Equations (October 2024 Challenge Question)
Pathfinder Tags: challenge question
Last post: 10/27/2024 11:25 AM
17 968
08/31/2024 12:00 AM Envelopes of Money (Sept. 2024 challenge question)
Pathfinder Tags: challenge question
Last post: 09/23/2024 9:37 AM
26 947
07/31/2024 12:00 AM The Time Now is 2:10 p.m. (August 2024 Challenge Question)
Pathfinder Tags: challenge question
Last post: 08/08/2024 10:03 AM
8 857
06/30/2024 12:00 AM Color Cubed (July '24 Challenge Question)
Pathfinder Tags: challenge question
Last post: 08/19/2024 6:05 AM
17 792
05/31/2024 12:00 AM Can You Spell 'Inglenook'? (June 2024 Challenge Question)
Pathfinder Tags: challenge question
Last post: 06/12/2024 6:11 AM
5 663
04/30/2024 12:00 AM "We Got A Great Big Convoy" (May 2024 Challenge Question)
Pathfinder Tags: challenge question
Last post: 05/28/2024 11:37 AM
22 847
03/21/2024 12:00 AM Wrapping Wisconsin in Toilet Paper (April 2024 challenge question)
Last post: 06/09/2024 8:13 AM
10 801
02/29/2024 12:00 AM Make It Equate Eight (March 2024 Challenge Question)
Pathfinder Tags: challenge question
Last post: 03/30/2024 11:40 AM
31 1165
01/31/2024 12:00 AM Ski Lift Mathematics (February 2024 Challenge Question)
Pathfinder Tags: challenge question
Last post: 02/26/2024 2:08 PM
34 1230
12/31/2023 12:00 AM Bent Coin Probabilities (January 2024 Challenge Question)
Pathfinder Tags: challenge question
Last post: 06/01/2024 7:04 PM
22 997
11/30/2023 12:00 AM Snail Race, Part 2 (December 2023 Challenge Question)
Pathfinder Tags: challenge question
Last post: 10/27/2024 11:38 AM
23 723
10/31/2023 12:00 AM Snail Race (November 2023 Challenge Question)
Pathfinder Tags: challenge question
Last post: 12/20/2023 7:46 AM
26 766
09/30/2023 12:00 AM Balloon Bafflement (October 2023 Challenge Question)
Pathfinder Tags: challenge question
Last post: 10/24/2023 8:30 AM
16 968
08/31/2023 12:00 AM A Deck of Cards in the Dark (September '23 Challenge Question)
Pathfinder Tags: challenge question
Last post: 10/04/2023 9:51 PM
13 877
07/31/2023 12:00 AM Counting to 1,000 by 3's (August 2023 Challenge Question)
Pathfinder Tags: challenge question
Last post: 08/02/2023 4:48 PM
6 797
06/30/2023 12:00 AM Bears and Ferries, Oh My! (July '23 Challenge Question)
Pathfinder Tags: challenge question
Last post: 07/24/2023 4:06 PM
9 1249
05/31/2023 12:00 AM Water on the Carousel (June 2023 challenge question)
Pathfinder Tags: challenge question
Last post: 06/27/2023 11:31 AM
15 852
04/30/2023 12:00 AM A Small Town Affair (May 2023 Challenge Question)
Pathfinder Tags: challenge question
Last post: 07/11/2023 9:34 AM
24 1198
03/31/2023 12:00 AM Best Bets vs. Russian Roulette (April '23 Challenge Question)
Pathfinder Tags: challenge question
Last post: 04/26/2023 10:10 AM
20 1033
03/01/2023 8:46 AM An Offset Sunrise (March '23 Challenge Question)
Pathfinder Tags: challenge question
Last post: 03/28/2023 2:39 PM
35 1057
01/31/2023 12:00 AM Back to 48 U.S. States? (February 2023 Challenge Question)
Pathfinder Tags: challenge question
Last post: 05/09/2023 4:41 PM
39 1183
12/31/2022 12:00 AM Unlocking Logic (Jan. 2023 Challenge Question)
Pathfinder Tags: challenge question
Last post: 01/30/2023 9:45 AM
16 878
11/30/2022 12:00 AM Dominoes on a Checkerboard (Dec. 2022 Challenge Question)
Pathfinder Tags: challenge question
Last post: 12/02/2022 2:24 PM
11 675
10/31/2022 12:00 AM Mirror, Mirror on the Wall (November '22 Challenge Question)
Pathfinder Tags: challenge question
Last post: 11/21/2022 11:05 AM
28 1247
09/30/2022 12:00 AM A Spooky Challenge Question with the Grim Reaper (Oct. 2022)
Pathfinder Tags: challenge question
Last post: 11/01/2022 4:05 PM
34 1133
08/31/2022 12:00 AM A Short-Fused Conundrum: September 2022 Challenge Question
Pathfinder Tags: challenge question
Last post: 09/23/2022 11:25 AM
30 640
Page 1 of 10: « First 1 2 3 Next > Last »
Display Options Current Activity
Showing blog entries 1 to 50 of 463 163 unregistered users
Sorted By Sorted By Sort Order Sort Order
From The From The
Tags (comma-delimited) (comma-delimited)
Show Blog Entries

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Section
General Discussion:
Go

Search this Blog
Challenge Questions:
Go

Recent Blog Entries

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (429 right now)
Show Members
Advertisement