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?

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

Chef Andrea has to light the kitchen stoves to open her restaurant for the day. There are three stoves in the kitchen: A glass stove, a brick stove, and a wood stove. She only has one match. Which does she light up first?

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

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

By using 'because' continuously three times, can you make an English statement ?

What jumps when it walks and sits when it stands?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

I look at you, you look at me, I raise my right, you raise your left. What am I?