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

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

We can be boring,Or interesting.
We can be long,Or short.
We can have pictures,Or just words.
Many love us,But many also hate us.
What are we?

Find the value of "?" in the ball picture Riddle below:

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

Peter wakes up daily to pick up his cycle and crosses the border between Spain and France daily with a bag on his shoulder. He is investigated daily by the officials but they don't find anything suspicious.

If we tell you that he is smuggling something what would it be?

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

You need to arrange three 7 and mathematical symbols to form number 1?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

Take away the whole and some still remain. What is it?