Replace the question mark with the correct number in below Picture:

I am a five-letter word and people eat me. If you remove the first letter I become an energy form. If you remove the first two letters, I am needed to live. Scramble the last three letters and I am a drink. What word am I?

John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

I have branches, but no fruit, trunk or leaves. What am I?

Can you move 2 matchsticks to form four equal sized squares.

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

If you say my name, I will no longer exist. What am I?

How can you make a TV, a bed, a dog, and a car liquid?

What do you get if you add 2 to 100 four times?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.