What is wrong in the below Picture?

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

What part of Turkey has the most feathers?

One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

The barber of Town shaves all men living in the town. No man living in the town is allowed to shave himself. The barber lives in that town. Who then shaves the barber of the town?

I don't get anymore wetter, no matter how much rain falls on me.

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?