Can you find the thief by just looking at the picture below?
In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?
A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it? Hint: Figure out the relation between time and number, is not so easy..:)
Can you find a pattern and the missing number in the series given below? 100, 155, 258,? , 584, 819.
In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat. Can this even be possible?
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
Manish and Manoj play 5 games of chess. Both Manish and Manoj win the exact same number of games. There is no tie at all. How?
Manish has to secure 40% marks to pass his B.tech final exams. He got just 40 marks and failed by 40-marks. What is the maximum marks?
Can you find out the missing number? ? 4 5 3 5 9 5 7 10 3
Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?
What time is it when an elephant sits on a fence?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.