What is the next number in this series?

4,12,84,3612....

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

Solve below rebus puzzle?

Intelligence Agency need to break the vault but the problem is that they are not able to break the vault.

On the vault, a text is written as:

31 11 33 33 43 45
21 25
31 24 11 31 51 41

To Break the code Intelligence Agency brings a mathematician named Joseph.
Minutes later he deciphers the code.

Whats the code?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

I don't get anymore wetter, no matter how much rain falls on me.

What is the Surname of Barbie Doll?

If a wheel has 54 spokes, how many spaces are there between the spokes?

Solve this tricky question. You are trapped in a forest. With you, you have a gun preloaded with two bullets in it. In front of you, there is a tiger, a leopard and a jaguar.

How do you survive?

Rearrange the letters in "new door" to make one word.