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

Why Aeroplane windows are round?

The two towns are exactly 100 km apart. John leaves City A driving at 30 km/hr and Jacob leaves City B half an hour later driving at 60 km/hr. Who will be closer to City A when they meet?

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?

Count the squares in the matchstick puzzle below?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

John, a 5-year-old boy, was really fond of the chocolates. He asked his Mother to give him some money to buy his favourite chocolates. His Mother gave him $45. He went to the shopkeeper and asked, "How much is one chocolate for?". The shopkeeper said $3 for one chocolate. Also, if you give me the wrappers of three chocolates, I will give you one for the exchange.
In total, how much chocolate could John eat?

What does this rebus means ?

Can you place six X (crosses) in below board without making three in a row in any way ?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?