By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Which alphabet letter is a question?

What is the last thing you take off before bed?

Can you find out who is the kidnapper in below Picture and why, Explain ?

If you were to put a coin into an empty bottle and then insert a cork into the neck, how could you remove the coin without taking out the cork or breaking the bottle?

Solve the alphametic puzzle by replacing the alphabet with the number.

S T O R M +
S O L E S
=========
T O W E L
=========

I know a nine-letter word having only one vowel.
Do you ?

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?

If eleven plus two equals one, what does nine plus five equal?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?