What English word has three consecutive double letters?

Imagine you are in a room with no windows or doors. How will you get out?

Can you make a six-letter word using the letters N, A and B ?

Replace the 'X' with any mathematical symbol to make the expression equal to 111.

18 X 12 X 2 X 3 = 111

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?

Find The Missing Number, 99% of People Fail To Solve This Table, Can You?

I guess 76.8% of readers will like this riddle.

What's the least number of people should read this post?

I am the fastest animal but cannot climb the tree. What am I?

I’m tall when I’m young, and I’m short when I’m old. What am I?

Replace the question mark with the correct number, given the pair of numbers exhibits a similar relationship?

? : 3839 :: 11 : 1209