What do you answer even though it never asks you questions?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

What goes up but never comes down?

Replace the question mark with the correct number.

Whats the next number in the below number sequence pattern.

Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

Can you move 2 matchsticks to form four equal sized squares.

Can you guess the name of the month by looking the below rebus ?