What is next number in the pattern below:

131 517 192 123 ?

I have feet, but no legs. Which animal Am I?

A man had five children. He had $100 with him to give to his children. He decided to start with the youngest child and then give $2 more than each younger child to his next elder child.

For example, if he gives $x to the youngest child, he will give $(x+2) to the next one, $[(x+2) + 2] to the next one and so on.

Can you find out how much did the youngest one receive?

What is the last thing you take off before bed?

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 jumps when it walks and sits when it stands?

Where do you go to learn how to make ice cream?

If one and a half boys, eat one and a half burgers in one and a half hours.

How many burgers can 9 boys eat in 3 hours?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

what does the below rebus means?