Which country gets ill every time?

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

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?

Find the hidden tiger in the given optical illusion ?

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

There are people and strange monkeys on this island, and you can not tell who is who (Edit: until you understand what they said - see below). They speak either only the truth or only lies.
Who are the following two guys?
A: B is a lying monkey. I am human.
B: A is telling the truth.

People make me, save me, change me, raise me. What am I?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

By using 'because' continuously three times, can you make an English statement ?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?