Can you find out who is the kidnapper in below Picture and why, Explain ?

Replace the question mark with the correct number in the below-given picture?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

Sally lives in a place where six months of the year is mild summer and the temperature drops significantly the other six months. She owns a lake where there is a small island. She wants to build a house on the island and needs to get materials there. She doesn’t have a boat, plane, or anything to transport them to the island. How does Sally solve this problem?

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

Find the missing number in the image below.

There was a blind beggar living on the footpath of a street. Suddenly one day, the beggar's brother died. What was the relation of the blind beggar with the person who died?

PS: Brother is not the answer.