1. What says "Dad" never touches it, but it will touch it twice when called "Dad"?

2. What is universal?

A man fell into the river. He climbed up from the river, but his hair was not wet. Why?

4. There is something that goes up and then falls, and goes up when it falls. What is this?

The more knowledge you learn in school, the less you learn.

The last answer

1. Satellite 2. The heart is higher than the sky. Call for help. Old people. Insomnia