What goes up but never comes down?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

Using the clues below, what four numbers am I thinking of?

The sum of all the numbers is 31.
One number is odd.
The highest number minus the lowest number is 7.
If you subtract the middle two numbers, it equals two.
There are no duplicate numbers.

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

I taste better than I can smell. Who am I?

Why did Navjot Singh Sidhu put the new January calendar in the freezer

On a bus, there is a 26-year-old pregnant lady.
A 30-year-old policeman.
A 52-year-old random woman.
And the 65-year-old driver.

Who is the youngest?

Identify the movie name through below Rebus containing Pi Mouse and coconut tree..

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?