What breaks yet never falls, and what falls yet never breaks?

The more it dries, the wetter it becomes. Can you tell what it is?

If an electric train is travelling south, then which way is the smoke going?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

What does this simple rebus mean?

Replace the question mark with the correct number.

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?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

People are waiting in line to board a 100-seat aeroplane. Steve is the first person in the line. He gets on the plane but suddenly can't remember what his seat number is, so he picks a seat at random. After that, each person who gets on the plane sits in their assigned seat if it's available, otherwise, they will choose an open seat at random to sit in. The flight is full and you are last in line. What is the probability that you get to sit in your assigned seat?

What happened when the wheel was invented?