What is the fastest way to double your money?

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

Do You See 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?

Jack and Joseph are well-known golf rivals. One Day during a match, they were level at a score of 30. Jack hit a bad shot and Joseph added 10 to his score. Joseph then hit an awesome shot and he won the game.

How ?

What part of Turkey has the most feathers?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

Which word does the below Plexor means ?

What is at the end of a rainbow?