School-Safe Puzzle Games

1. #### Square of the Primes

Pavlen | Profile

Why 11 digits? I tried 11 digit binaries, as decimals but could not find yet. Not easy to reverse numbers even in Excel. I could reverse, but have problems to copy then.

2. #### The 12 Dots

einstein | Profile

Good One.

3. #### Square of the Primes

onfire | Profile

11

4. #### Square of the Primes

suineg | PUZZLE MASTER | Profile

Jaja, cool I thought it was an eleven digit prime…. thats why I gave up quickly man, the primes doubled squared gives you a 41 to 43 digit number jajajajaja, but cool man.

5. #### A [S]imple Rebus…maybe

Nparris | Profile

Loved !

6. #### Square of the Primes

Shawn | PUZZLE GRANDMASTER | Profile

Yes! Those were the two solutions at which I arrived. I was hoping to find an answer that was not palindromic, which would have been much more interesting, but I reached the limits of Excel without finding such an animal.

This little trick will work with any number of the form “100…001″ but, other than 101, no other such numbers are prime (at least not within the limits of my power to discover them).

@Bobo the header image is a oblique nudge toward finding the first answer, 11, and recognizing the doublesquare=palindrome requirement. Plus, it was easy to find on an image search, and the color matches the webpage, so I guess you could call it destiny!

7. #### Simple puzzle will confuse all but the accountants

Scholar gypsy | Profile

Hv no idea..what would be the answer is?

8. #### Square of the Primes

DanWebb | Profile

Very difficult problem. How do I see the comments?

9. #### Square of the Primes

Hex | PUZZLE MASTER | Profile

Possible starting numbers: 11 and 101
11^2^2 = 14641
Reverse digits: 14641 -> 14641
sqrt(sqrt(14641)) = 11

101^2^2 = 104060401
Reverse digits: 104060401 -> 104060401
sqrt(sqrt(104060401)) = 101

10. #### Square of the Primes

Bobo The Bear | PUZZLE MASTER | Profile

My first response (after about 30 minutes effort) is that only A=11 and A=101 will work. In both cases, A^4 is palindromic, meaning the final prime number is A itself. Cannot yet prove this. (BTW: I am going on the assumption that the picture is not meant to imply that A is an 11-digit prime. Although I am curious as to why that image was chosen.)

11. #### Sum of Primes

Square of the Primes | Smart-Kit Puzzles and Games | Guest

[...] Sum of Primes! « Best of Casual Puzzle Games [...]

12. #### Cube Rotation Question

zakir | Profile

green

13. #### Seeing stars

dezcifrando | Profile

3 black stars – all lines and columns must have 4 white stars and 5 black stars

14. #### Purple star progression

dezcifrando | Profile

6

15. #### Green Triangles with Some Math

dezcifrando | Profile

9

16. #### A Glorious Game

dezcifrando | Profile

My answer is 5 players. Using the Venn diagram, you can easily figure it out. I agree with @suineg. You have to have in your mind that players can sound and also break both of their arms. You will need to make 3 Venn diagrams

17. #### Hidden Object, Find the Tower Raven

Spotter | Profile

up his black trouser leg (right)

18. #### French Hidden Object Card

Spotter | Profile

clouds signify the roosters body

19. #### Hidden Object-Find the Druid

Spotter | Profile

ahh hidden in the stone to the left quite an easy one upisde down

20. #### Hidden Object-Find the Druid

Spotter | Profile

ahh hidden in the stone to the left quite and easy one

21. #### Where is the Astronomer?

Spotter | Profile

between the globe and the curtain to the left

22. #### Hidden Forms

Spotter | Profile

a man looking down a a small (boy/girl) in his arms

23. #### Hidden Object, Find the Devil

Spotter | Profile

In the center of the clouds

24. #### Hidden Object Card- 2 Artists

Spotter | Profile

1. upside down on the painting (smaller) 2. Between the painter and the boy looking at painting from aside

25. #### Fill in the Matrix

suquillo | Profile

It is (a)

26. #### Fill in the Matrix

suquillo | Profile

Very well.

27. #### Matrix Puzzle- Triangles & Rectangles

naghma naz | Profile

“D”

28. #### ‘Cover the Spot’-the carnival puzzle game.

my2livers | Profile

I lost a about \$15 or \$20 years ago on this one. I figured “I’m a mathematician so I can do this.” Whenever I placed the 2nd and 3rd circles in the correct spots, the Carnie claimed to ‘help’ me by moving them up slightly. I was so young and trusting (and stoned) that I failed 2 realize what he was doing. Geez… As my dad used to tell me, “For someone so smart U sure act stupid!” Now that I’m older and wiser and don’t have to bet any money, I’m looking 4ward to trying this game. Hope it’s still avail. cheers.

29. #### School Bus Puzzle

my2livers | Profile

I see that a lot of us are pretty defensive when faced w/ the possibility that children are more observant than we! haha. Glad I’m not alone. Props 2 the kids!

30. #### School Bus Puzzle

my2livers | Profile

It’s not moving at all! It’s standing still in the middle of my screen. Good thinking by the kids, but where’s the windshield? I don’t think this bus is going anywhere….