Can you find out the missing number in the grid?

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

I am green and found in the forest and have needles instead of leaves. What am I?
Hint 1: It can be used for Christmas decorations.
Hint 2: I have a strong, scent that is used in air fresheners.

Can you find out the total number of triangles in the given figure?

A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?

An explorer goes on an exposition in the jungle. He sets up camp in the middle of the jungle. The next morning he sees something with a head and a tail, but he is not afraid. What did he see in his bag?

Spot what is wrong here in below Picture?

What Time Should the last watch show in the below figure?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?