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.

Delivering Grain on Time

A collective farm was due to deliver its quota of grain to the state authorities. The management of the Kolkhoz decided the trucks should arrive in the city at exactly 11:00 A.M.

If the trucks traveled at 30 miles per hour they would reach the city at ten, an hour early; at 20 miles an hour they would arrive at noon, an hour late.

How far is the Kolkhoz from the city, and how fast should the trucks travel to arrive at 11:00 A.M.?

Riddle Answer

100 Eggs With 100 Cents

You must buy hundred eggs with hundred cents. There are three types of eggs and you will need to buy all three types of eggs. Goose eggs must be bought in multiples of 20.

  • 1 Chicken egg cost 5 cents
  • 1 Duck egg cost 1 cent
  • 20 Goose eggs cost 1 cent

How many chicken, duck and goose eggs do you need to buy?

Riddle Answer

The Missing Dollar

Three men go to stay at a hotel and they are charged $30 for the room.

They split the cost with ten dollars each.

Later the manager finds out that the rate is $25 and gives the bellboy $5 to return to the guests. On the way to the room the bellboy reasons that $5 would be difficult to split among three people so he pockets $2 and gives $1 to each person.

Now each person paid $10 and got back $1. So they paid $9 each, totalling $27. The bellboy has another $2, adding up to $29. Where is the missing dollar?

Riddle Answer