2) What is so fragile that sound can destroy it?

3. What do you throw out when you want to use it, but take in when you don't want to?

4. In a year, there are 12 months. Seven months have 31 days. How many months have 28 days?

5. You are driving a bus. At the first stop, two women get on. The second stop, three men get on and one woman gets off. At the third stop, three kids and their mom get on, and a man gets off. The bus is grey, and it is raining outside. What color is the bus driver’s hair?

6. When you have me, you immediately feel like sharing me. But, if you do share me, you do not have me.

7. What can you hold without ever touching or using your hands?

8. Jimmy’s mother had four children. She named the first Monday. She named the second Tuesday, and she named the third Wednesday. What is the name of the fourth child?

9. Take off my skin - I won't cry, but you will! What am I?

10. What invention lets you look right through a wall?