What numbers should go on the bottom line? 3 6 9 15 8 2 10 12 11 8 19 27 19 10 29 39 ? ? ? ?
What is the next number in this series? 4,12,84,3612....
A man dies of old age on his 25 birthday. How is this possible?
You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'. S E Q U E N C _
f you were running a race, and you passed the person in 2nd place, what place would you be in now?
There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes
What brings you down but never up?
You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?
A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?
Why is 6 afraid of 7?
I am quite hot but become too cold if you remove the first two letters. What am I?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
