Can you solve the fantasy election riddle? - Dennis E. Shasha
5:42
Can you solve Dongle's Difficult Dilemma? - Dennis E. Shasha
4:13
Can you solve the temple riddle? - Dennis E. Shasha
5:04
Can you solve the dragon jousting riddle? - Alex Gendler
5:06
Can you solve the demon dance party riddle? - Edwin Meyer
5:34
A riddle of ice and fire dragons - Henri Picciotto
11:18
20 Chess Rules Everyone Should Know
4:39
Can You Solve The 4 Hats Logic Puzzle?
5:10