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Complete the missing letters of the given word.

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

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?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

John went to meet his friend Jacob, but when he was about to reach the main gate, John notices that Jacob had a mighty dog who was fastened to the tree. The chain is long enough that it allows the dog to reach the main gate.

How can the John reach the main gate?

A woman is sitting in her hotel room and hears a knock at the door. She opens the door to see a man whom she’s never met before. He says, “I’m sorry, I have made a mistake, I thought this was my room.” He then goes down the corridor and into the elevator. The woman goes back into her room and calls security. What made the woman so suspicious of the man?

A bus driver was heading down a street in Mexico. He went right past a stop sign without stopping, he turned left where there was a "no left turn" sign, and he went the wrong way on a one-way street. Then he went on the left side of the road past a cop car. Still - he didn't break any traffic laws. Why not?

Which is the correct shadow of the bird?

Why Aeroplane windows are round?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?