A four-digit number (not beginning with 0) can be represented by ABCD. There is one number such that ABCD=A^B*C^D, where A^B means A raised to the B power. Can you find it?

I am a number I am not an odd number I am higher than 90 I am not higher than 100 If you subtract me from 100, you get nothing. What number am I?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

Which five letter word can be added at the end of below word to form a
valid word?

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Find the missing letter in the last circle logically in the given below picture.

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

Find the combined weight of the Cat, Dog and Rabbit in the given picture.

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

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?