1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Do You See It?

What jumps when it walks and sits when it stands?

You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

Alex is stranded on an island covered in forest.
One day, when the wind is blowing from the west, lightning strikes the west end of the island and sets fire to the forest. The fire is very violent, burning everything in its path, and without intervention the fire will burn the whole island, killing the man in the process.

There are cliffs around the island, so he cannot jump off.

How can the Alex survive the fire? (There are no buckets or any other means to put out the fire)

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

How many words can a pen with half refill write?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

Can you find the key in the picture below?