A large container is kept in open under the rain. Every passing hour, the water collected inside the container becomes double what it was.

In ten hours, the container is filled completely. Can you calculate how long would it have taken to be filled in half?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

You walk into a room where there are three primates held in their respective cages:
1) A lion who is eating the flesh of a goat.
2) An orangutan who is playing with blocks.
3) A donkey who is sitting idle.

Who is the most intelligent primate in the room?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

Which word does the below Plexor means ?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

You need to remove two matchsticks to make the below equation true. Can you do it ?