How can you make number one disappear by adding something to it?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

What jumps when it walks and sits when it stands?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

How many letters are in the alphabet?

Mr Black, Mr Gray, and Mr White are fighting in a truel. They each get a gun and take turns shooting at each other until only one person is left. Mr Black, who hits his shot 1/3 of the time, gets to shoot first. Mr Gray, who hits his shot 2/3 of the time, gets to shoot next, assuming he is still alive. Mr White, who hits his shot all the time, shoots next, assuming he is also alive. The cycle repeats. If you are Mr Black, where should you shoot first for the highest chance of survival?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

An exterior architect is asked by a builder to plant seven trees in a manner that there are exactly six rows of trees in a straight line and each row has three trees in particular.

How will he do it?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

Identify the movie name through below Rebus containing Pi Mouse and coconut tree..