Find the next number in the series below

21 32 54 87 131 ?

Prove that the below maths equation is true.

8 + 8 = 91

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

The captain of a ship is telling you an interesting story and then poses a question. He says, “I have travelled the oceans far and wide. One time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly. Can you tell me how that was possible?”

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

I am something people love or hate. I change peoples appearances and thoughts. If a person takes care of them self I will go up even higher. To some people I will fool them. To others I am a mystery. Some people might want to try and hide me but I will show. No matter how hard people try I will Never go down. What am I?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

Replace the question mark in the picture below.