Can you solve this picture maths equation?

Can you place three balls such that the equation shown in the picture holds true?

What Adam and Eve do not have but the rest of the people have?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

It is an eleven letter word.
The first, second, third and fourth letters form a banquet's name.
The fifth, sixth and seventh letters form a car's name.
The eighth, ninth, tenth and eleventh letters form a mode of transport.

Can you identify what word it is?

In the given picture, in how many ways can you read the word "Tiger"?

Find the value of "?" in the ball picture Riddle below:

It can't be seen, can't be felt, can't be heard, and can't be smelt.
It lies behind stars and under hills, And empty holes it fills.
It comes first and follows after, Ends life, and kills laughter.
What is it?