Math Riddles

These Math Riddles are based on math concepts and can be solved with a bit of math and logic. These fun riddles can surely give you a tough time.

Brilliant Sister

Peter says to his sister Bitsy, “Because I’m twice as old as you, I’m twice as smart, too.” His sister responds, “Yes, but in five years I’ll be twice as old as I am now, and you won’t.”

Peter is dumbfounded, and he stops to calculate how old he and his sister will be in five years. Do you know the answer?

Riddle Answer