When it's bad luck to meet a black cat?

A train full of passengers goes through a tunnel. When the train comes out from the other end, there is no single person on the train.

How did it happen?

In the formation, you can see a few arranged matchsticks. Can you form three squares by moving just three matchsticks?

Take number 1000 and then add 20 to it.
Now add 1000 one more time.
Now add 30.
Now add 1000 one more time.
Now add 40.
Now add 1000 one more time.
Now add 10.

What is the total?

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

There are two guys standing face to face in a room. On a wall, there is a clock. One of those is a prophet. He tells the other guy that he will be stabbed in the back in five minutes.

Shocked to hear that, the other guy stares at the clock. Just after the five minutes, he is stabbed on the back. Can you tell what happened?

Why is the longest human nose just 11 inches?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.