I am quite hot but become too cold if you remove the first two letters. What am I?

What is harder to catch the faster you run?

Keyboard words are not in alphabetical order, Why?

Which is the smallest number that you can write using all the vowels exactly once?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

An inspection by the superintendent of St. Joseph School was scheduled on the next day. The class teacher Jenifer knew that he would be asking questions from her class and she would have to choose a pupil to answer. To offer a perfect impression over him, the teacher explained certain instructions to the students to maximise the chances of getting correct answer every time.

What did she say to the students?

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?

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

What word is pronounced the same if you take away four of its five letters?