You need to arrange three 7 and mathematical symbols to form number 1?

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?

Replace the question mark with the correct number.

2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?

There is a place where if I stand up straight, I will still be considered sideways.

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Which is the rope you never skip with?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

Can you place six X (crosses) in below board without making three in a row in any way ?

Where do you go to learn how to make ice cream?

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=