Can you count the number of quadrilaterals in the picture below?

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

O_er_t_o_

Complete the missing letters of the given word.

If you say my name, I will no longer exist. What am I?

Why 1729 is a magic number? Answer Logically.

How can you write nineteen in a manner that if we take out one, it becomes twenty?

Who can jump higher than a Mountain?

People make me, save me, change me, raise me. What am I?

Eight Chelsea player makes the following statements :

1. Seven of us are lying here.
2. Six of us are lying here.
3. Five of us are lying here.
4. Five of us are lying here.
5. Four of us are lying here.
6. Three of us are lying here.
7. My name is Torres.
8. My name is Lampard.

The last two are Lampard and Torres or maybe Torres and Lampard.
So can you deduce which of the last two is Lampard or Torres?

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle: