Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?
It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?
I have Rs.50 and I spend it in the way as below.
Which is the correct shadow of the bird?
It is a six-letter word. The first four letters are me. The second and last letters are the same. The fourth second and last letter is payment. Who is it?
You bought me for dinner but never eat me. What am I?
Find the missing number: 1, 2, 3, 10, 10, ?, 9,802
Solve the alphametic puzzle by replacing the alphabet with the number. S T O R M + S O L E S ========= T O W E L =========
What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?
What can you serve, but never eat?
Can you find out which number multiplied by itself will give the output as 12345678987654321?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.