Can you find out what is missing? 1 3 5 2 4 ? Hint: It's not six. Think out of the box.
What does this say? XLR8
John was driving a bus and got stuck when passing through an underpass. Then came Jacob with a needle and got the bus out of the underpass. What did the boy do?
What has no start, end, or centre?
Find the next number in the series 12, 20, 40, 72, 116, 172 ?
If a wheel has 54 spokes, how many spaces are there between the spokes?
Can you decipher these quotes by Albert Einstein? Blf xzm mvevi hloev z kilyovn lm gsv ovevo lm dsrxs rg dzh xivzgvw.
The following alphametic has only one solution. Can you find it? ENLIST + SILENT + LISTEN = ANAGRAM PS: You may start the number from 0.
A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?
Which is the rope you never skip with?
Can you count the number of children in the picture below
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
