There is an animal missing in the list below. Let's catch it quickly, it can't have gone far. It should still be within 17 blocks. ( fish-bear , hedgehog-whale ) ( rhinoceros-albatross , chimpanzee-ostrich ) ( ???-horse , wombat-lemur ) ( crow-fish , monkey-??? ) ( chameleon-hedgehog , dog-bear )...

A turnable wheel is attached flat to a wall. Evenly spaced around the edge of the wheel, are painted the heads of $n$ different animals. Evenly spaced around the wheel on the wall, are painted the bodies of the $n$ animals. For which numbers $n$ can we arrange the heads and bodies so that exac...

Just a neat little factoid I came across the other day. As a worked example, consider $n=5$. $1^3+2^3+3^3+4^3+5^3=1+8+27+64+125=225$. $(1+2+3+4+5)^2=15^2=225$. Prove this is true for all positive integers. This puzzle is suitable for beginners, and I would recommend for more experienced puzzlers ...

Here are ten numbers represented by symbols in numerical order. Start with the smallest. ◑ ◑ ◑ ◐ ◑ ◐ ◐ ◐ ◑ ◑ Answer: +2 +5 +2 -2 -6 +6 -5 -13 -7 -14

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"A man placed four stepping stones one foot square in a row in a section of his garden so that were equal spaces on all four sides of each of the stone. if the section was 3 feet wide, how long was it 1 - 12 ft 2 - 9 ft 3 - 8 ft 4 - 3 ft" Torn between option 2 and 3 because if there's equal space...