why number 8549176320 is one of a kind?

The doctor prescribed you to take one pill from the bottle every half an hour. The bottle is now left with only three pills.

How long do you think you have before you run out of pills?

What has a ring but no finger?

What goes up but never comes down?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

What number do you get when you multiply all of the numbers on a telephone's number pad?

Solve the mathematical equation in the picture below.

who is silent in the parliament?

I travel all around the world but always stay in the corner. What am I?

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