What is next number in the pattern below:

131 517 192 123 ?

10+10 and 11+11 can give you the same answer.

Explain how?

What's the only room from which no one can enter or leave

John has eleven friends. He has a bowl containing eleven apples. Now He wants to divide the eleven apples among his friends, in such a way that an apple should remain in his bowl.
How can He do it?

What does this rebus means ?

PROG WORKRESS

Why is Saturday stronger than Monday?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.

What is the riddle which can be asked all day with a different correct answer each time.

What does below Rebus mean ?

esgg sgeg gegs gsge