Do You See It?

Solve The below Equation:

ALFA + BETA + GAMA = DELTA

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

You have an empty wine bottle with a cork that has been secured at the top in a normal way. There is a metal ring inside the bottle that is suspended by a string.

How can you make the metal ring drop to the bottom if you are not allowed to touch anything - not the bottle, not the cork, not the thread and not the ring?

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?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

How many Watermelons are there in the below picture?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Count the number of triangles in the given picture.

The horse jumps over the king.
Strangely there is absolutely no scratch on him.

Can anyone explain, how is this possible?