There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

A man dies of old age on his 25 birthday. How is this possible?

Which alphabet is a part of our body?

There are five people. One of them shot and killed one of the other five.
We know following clues:
1. Dan ran in the NY City Marathon yesterday with one of the innocent men.
2. Mike consider being a farmer before he moved to the city.
3. Jeff is a top notch computer consultant and wants to install Ben new computer next week.
4. The murderer had his leg amputated last month.
5. Ben met Jack for the first time six months ago.
6. Jack has been in seclusion since the crime.
7. Dan used to drink heavily.
8. Ben and Jeff built their last computers together.
9. The murderer is Jack's brother. They grew up together in Seattle.

Consider yourself to be a famous detective "Sherlock Homles", Can you find the killer?

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

Can you find the number?

What jumps when it walks and sits when it stands?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

There is something which you can be arrested for attempting but not for successfully completing.

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

What has many keys but can’t open a single lock?