math

• 24

• 25

• 13

• 12

What has teeth but cannot bite?

• comb

• zipper

• saw

• gear

What is black when you buy it, red when you use it, and gray when you throw it away?

• shoe

• belt

• charcoal

• all the above

Poor people have it.

Rich people need it.

If you eat it you die.

 

What is it?

• money

• luxury items

• brain

• nothing

• 15

• 14

• 16

• 17