What goes up but never comes down?

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

Solve below rebus puzzle?

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

John can fit six large chocolate boxes or nine small chocolate boxes into a carton. How many cartons will he require to put sixty-six chocolate boxes into?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

If you say my name, I will no longer exist. What am I?

Akbar called Birbal and asked him to draw a line on the floor. He asked Birbal to make that line smaller without erasing it. Birbal smiled and did it before Akbar could blink his eyes.

How did he managed to do it?

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?

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?