You throw me out when you want to use me and you take me in when you don't want to use me.

Who Am I?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

What is the next number in the series?

15 29 56 108 208 ?

You are trapped into a death trap by the famous jigsaw killer. As usual, a screen flashes in front of you and explains you the trap game. There are 100 pearls kept in a bowl in front of you and an empty bowl. Among the 100 pearls, 50 are white and 50 are black. You can divide them as you like into the two bowls. Once you are done, you will pull a lever, which will turn the room pitch black. The bowls will move and shuffle around. In the dark, you have to pick up one pearl from any bowl. Once you do that, the room will flood with lights again. If the peral you have in your hand is white, you will be allowed to live, but if the pearl you picked is black, the room will be filled with poisonous gas and you will die. How will divide the pearls to increase your chances of survival?

Can you solve the below rebus?

I drive at an average speed of 30 miles per hour to the railroad station each morning and catch my train. On a particular morning, there was a lot of traffic and at the halfway point, I had averaged only 15 miles per hour. How fast must I drive for the rest of the way to catch my train?

What is the coolest letter in the alphabet?

Replace the question mark with the correct number in below Picture:

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?