Good Riddles

Question: 2+3=8 4+5=24 6+7=42 8+9=80 9+10=?

Question: Miss Mary's father had 4 kids: Joseph, John, and Jordan. What was the 4th kid's name?

Question: Mom and Dad had four girls. Each girl had one brother. How many people are in the family?

Question: What do you break before using it ?

Question: What is hot but doesn't burn?