Medium Riddles

If you divide 30 by half and add 10, what do you get?

What can you keep after giving to someone?

What has a head, a tail, is brown, and has no legs?

What can burn the eyes without touching them?

Four men were in a boat on the lake. The boat turns over, and all four men sink to the bottom of the lake, yet not a single man got wet! Why?

A doctor gives you three pills and tells you to take one every half hour. How long will the pills last?

What starts with ‘e’, ends with ‘e’, and contains only one letter?

What belongs to you but others use it more than you do?

How many months have 28 days?

David’s parents have three sons: Snap, Crackle, and ____?