What is so fragile that saying its name breaks it?

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

What is the end of everything?

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

You need to cut a round cake into eight equal pieces with just 3 cuts. Can you do it?

In the given picture, in how many ways can you read the word "Tiger"?

Can it be possible to build a house that has all its four walls facing towards the South?

When can we add 2 to 11 and get 1 as the correct answer?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?