Can you find out the remainder when 3^300 is divided by 5?

When monkey rotate the gear, which mark will be hit 1 or 2 ?

Can you count the number of blocks in the picture below?

It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?

What Does this text mean:

important=important

When is the top of a mountain similar to a savings account?

A family is trapped in a jungle. There is a bridge which can lead them to safety. But at one time, the bridge can only allow two people to pass through. Also, all of them are afraid of the dark and thus, they can't go alone.

Father takes 1 minute to cross, the mother takes 2 minutes, the son takes 4 and the daughter takes 5 minutes. While crossing the time taken will be according to the slower one. How can they all reach the other side in the minimum possible time?

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

Why do Chinese men eat more rice than Japanese men do ?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes