What is the fastest way to double your money?

What's a single-digit number with no value?

What is the end of everything?

Who can jump higher than a Mountain?

Identify Me

Hint1: I am a god
Hint 2: I am a planet
Hint 3: measurer of heat

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

A man is sitting in a bar when a rich man sits next to him. He turns to the rich man and says, “Did you know I know almost every song that has ever existed?”

The rich man laughs. The man then says, “I bet you all the money you have in your wallet that I can sing a genuine song with a lady’s name of your choice in it. The rich man laughs again and says, “OK, how about my daughter’s name, Jamie Armstrong-Miller?” Minutes later, the man collects his cash and the rich man goes home cashless. What song did the man sing?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?