Top Math Riddles with Answers
Mr. Smith has 4 daughters. Each of his daughters has a brother.
How many children does Mr. Smith have?
There is a chain nailed to the wall. The chain is 10 feet long and the centre of the chain dips down 5 feet from where each side of the chain is nailed to the wall. How far are the 2 ends of chain from each other?
There are two planes. One is going from New York to London at a speed of 600 MPH. The other is travelling from London to New York at a speed of 500 MPH.
When the planes meet which one will be closer to London?
If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?
A ladder hangs over the side of a ship anchored in port. The bottom rung of the ladder touches the water. The distance between rungs is 30cm, and the length of the ladder is 270cm.
If the tide is rising at a rate of 15cm per hour, how long will it be before the water reaches the top rung?
A child playing on the beach had 6-1/6 sand piles in one place and 3-1/3 in another.
If he put them together, how many sand piles would he have?
In a lake, there is a patch of lily pads. Every day, the patch doubles in size. If it takes 48 days for the patch to cover the entire lake, how long would it take for the patch to cover half the lake?
If it takes 5 machines 5 minutes to make 5 widgets, how long would it take 100 machines to make 100 widgets?
A bat and a ball cost $1.10. The bat costs one dollar more than the ball. How much does the ball cost?
An athlete is able to jump FOREVER. However, every time that she jumps she gets a bit more tired, and every jump goes 1/2 as far as her prior jump. Now, for her very first jump, she goes 1/2 of a foot.
On her second jump, she goes 1/4 of a foot, and so on and so forth.
A person picks up cigarette butts from the ground and can make a cigarette with 4 butts. If he finds 16 cigarette butts, how many cigarettes can he make?
Three people check into a room. The bill is $30. They split it 3 ways. Later on the hotel realizes they should have charged $25 so they send a bellhop to return $5. The bellhop realizes he can't split $5 3 ways to he gives each person $1 and keeps $2.
They have now paid $9 each for the room, the bellhop has $2.
$27 + $2 = $29
What happened to the last $1 considering $30 was originally paid.