Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

No one wants to have it, but if one got it, he does not want to lose it. What is It?

What is the next number?

77, 49, 36, 18 ?

John was visiting his friend Jacob. He found out that his friend's wife had just killed a burglar in self-defense.
John asks Jacob about what happened and he told that "His wife was watching television when suddenly the bell rang. She thought that it is her husband Jacob but she found the burglar who attacked her instantly and she got so frightened that she killed the burglar immediately with the knife.
John asked the police to arrest his friend's wife. Why?

A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

The Puzzle: A girl, a boy, and a dog start walking down a road.

They start at the same time, from the same point, in the same direction.

The boy walks at 5 km/h, the girl at 6 km/h.

The dog runs from boy to girl and back again with a constant speed of 10 km/h. The dog does not slow down on the turn.
How far does the dog travel in 1 hour?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

Andrew sees a very rare bird named "Ruppell's vulture". Soon Andrew was dead. Can you explain the mystery, Mr. Sherlock?