What work can one never finish?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

I make two people out of one. What am I?

A train full of passengers goes through a tunnel. When the train comes out from the other end, there is no single person on the train.

How did it happen?

John is pretty weird. He likes toffees but hates chocolates. He loves books but never reads. He likes to build his troops in an online game but does not proceed with the war. He likes to go swimming but is afraid of water.

Seeking this behaviour, can you tell whether he likes balloons and parties?

How many triangles can you find in this given picture?

Decode below rebus
D
N
A
T
S , D

It is always ahead of me yet I can never see it. What is it?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.