Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

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?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

John speaks the truth only once a day in a week. Below are a few hints for you:

First: Days are Sunday, Monday and so on.
Second: One day he says, "I lie on Monday and Tuesday".
Third: On the next day, he says, "Today is either Thursday, Saturday or Sunday".
Fourth: On the next day, he says, "I lie on Wednesday and Friday".

Can you identify the day on which he speaks the truth?

What makes this number unique: 8,549,176,320?

During which month do people sleep the least?

What does the below rebus puzzle mean?

What does this below rebus puzzle mean?

How can you take 2 from 5 and leave 4?