A man dies of old age on his 25 birthday. How is this possible?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

You have two bottles of pills marked with labels A and B. The pills are identical. The doctor has asked you to take one A pill and one B pill daily. You cant take more or less than that.

While taking out the pills one day, you took out one pill from A and by mistake took out two from B. You have no idea which pill is which now.

You cant throw away the expensive pills. What will you do now?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

What seven-letter word has hundreds of letters in it?

Two men are in a desert. They both have packs on. One of the guys is dead. The guy alive has his pack open, and the guy who is dead has his pack closed. What is in the pack?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

How many triangles are there on the puzzle below?

Can you start the fire using two pieces of wood?