A man lives on the fifteenth floor of an apartment building. Every morning he takes the elevator down to the lobby and leaves the building. In the evening, he gets into the elevator, and, if there is someone else in the elevator, or if it was raining that day, he goes back to his floor directly. Otherwise, he goes to the tenth floor and walks up five flights of stairs to his apartment. Can you explain why he does this?

I have teeth but i don't bite. Who Am I ?

Which part of London exists in France as well ?

Can you identify if it's a murder or a suicide ?

Which is heavier: a ton of bricks or a ton of feathers?

What does a man do only once in his lifetime, but women do once a year after they are 29?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

What's the only room from which no one can enter or leave

A swan sits at the center of a perfectly circular lake. At an edge of the lake stands a ravenous monster waiting to devour the swan. The monster can not enter the water, but it will run around the circumference of the lake to try to catch the swan as soon as it reaches the shore. The monster moves at 4 times the speed of the swan, and it will always move in the direction along the shore that brings it closer to the swan the quickest. Both the swan and the the monster can change directions in an instant.
The swan knows that if it can reach the lake's shore without the monster right on top of it, it can instantly escape into the surrounding forest.

How can the swan successfully escape?

Who is generally closer to the kids, mom or dad?

(it's a funny riddle)