Can you find out the missing number in the grid?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

Why are televisions attracted to people?

The captain of a ship is telling you an interesting story and then poses a question. He says, “I have travelled the oceans far and wide. One time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly. Can you tell me how that was possible?”

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

What's the best place to go shopping in the ocean?

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

Okay before we begin with the puzzle, do keep in mind that you have to answer it quickly.

You are participating in a car race. Seeking the perfect moment, you overtake the second person in the race. What positions are you in now?