What numbers should go on the bottom line? 3 6 9 15 8 2 10 12 11 8 19 27 19 10 29 39 ? ? ? ?
Why do we preferably have round manhole covers and not square ones?
Using Only Five 5's and any mathematical operator make sum as 37
Which wheel of car does not rotate when you turn your car right?
Which part of London exists in France as well ?
They are three errirs in this question. Can you find them?
What is common among 11, 69, and 88?
What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?
John has eleven friends. He has a bowl containing eleven apples. Now He wants to divide the eleven apples among his friends, in such a way that an apple should remain in his bowl. How can He do it?
Below, you can see three complete equations and one incomplete. Based on the three complete ones, can you complete the incomplete one? 5 $ 4 $ 3 $ 9 = 4215 6 $ 9 $ 2 $ 6 = 3816 4 $ 7 $ 3 $ 3 = 1122 7 $ 2 $ 7 $ 4 = ____
Can you circle exactly four of these numbers such that the total is twelve? 1 6 1 6 1 6 1 6 1 6 1 6
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
