This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

What has many keys but can’t open a single lock?

A train full of passengers goes through a tunnel. When the train comes out from the other end, there is no single person on the train.

How did it happen?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

When 99 is considered higher than 100?

A bridge is about to collapse. There are four people P, Q, R and S on one of the sides. Before the bridge collapses, they want to cross it. Now since the bridge is too weak, it can only stand the weight of two people at a time. Also, it is night time and nothing is visible. They have just one torch with them.

Now P takes one minute to cross the bridge, Q takes two minutes to cross, R takes five minutes to cross and S takes ten minutes to cross.

The bridge will collapse in seventeen minutes. How will they be able to cross the bridge before it collapses?

A man had five children. He had $100 with him to give to his children. He decided to start with the youngest child and then give $2 more than each younger child to his next elder child.

For example, if he gives $x to the youngest child, he will give $(x+2) to the next one, $[(x+2) + 2] to the next one and so on.

Can you find out how much did the youngest one receive?

Which famous Hollywood movie name is hidden in the below rebus?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?