what's the probability of getting a king or a queen from a pack of 52 cards?

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

If 1+9+8=1, what is 2+8+9?

In a university, a professor gave a set of three problems to the three brilliant students of his class. See the image for the questions.

Count the squares in the matchstick puzzle below?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

A few friends are enjoying their sea voyage in a boat full of apples. On the way, they felt hungry and thus decided to eat the apples. Together, they ate two dozen of apples. When they have eaten the apples, will there be any change in the water level?

What word does this rebus represent?

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Do you know who was buried in John's tomb?

Why is the Hole below a Lock?