What is the below Rebus indicate?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

Count the number of lines in the image below ?

There was a blind man. He had four socks in his drawer either black or white. He opened it and took out two socks. Now the probability that it was a pair of white socks is 1/2.

Can you find out the probability that he had taken out a pair of black socks ?

Find the value of "?" in the ball picture Riddle below:

What is the last thing you take off before bed?

Can you find out the total number of triangles in the given figure?

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

Explain how?

I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

A man wants to cross the pit of fire which is 25 feet in length and he has 2 planks(fire resistant) 19 feet in length. How can he cross the pit of fire alive?