Best short riddles

What is the ancient invention that allows people to see through walls?

Before Mt. Everest was discovered, what was the highest mountain in the world?

What is invisible and makes people suffer from symptoms like sweating and nausea, yet people can’t survive without it?

What is more impressive than a talking dog?

When it comes to me, you go on red and stops on green. What am I?

What kind of ties can't you wear?

What has a tongue, cannot walk, but gets around a lot?

What has many keys but can't open any doors?

If Fortune had a daughter, what would her name be?

You are in a room with 3 monkeys. One monkey has a banana, one has a stick, and one has nothing. Who is the smartest primate?