Verifique sua intuição: O problema do aniversário - David Knuffke
3:55
1 est un ... vraiment ?
8:03
The Birthday Paradox
4:46
Can you solve the Mondrian squares riddle? - Gordon Hamilton
4:56
Would you sacrifice one person to save five? - Eleanor Nelsen
10:45
The Man Who Solved the $1 Million Math Problem...Then Disappeared
4:53
Can you cheat death by solving this riddle? - Shravan S K
14:01
Plus personne ne veut d'enfants (et c'est très grave)
5:22