Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

What type of tree can I carry in my hand?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

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 are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

I look at you, you look at me I raise my right, you raise your left. What am I?

Write the next letter in this sequence.
O, T, T, F, F, S, S, E, __
**Hint: It is a Number Series Puzzle

Count the number of lines in the image below ?