What has no start, end, or centre?

You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

I have 50 feet long of cloth, I need to create 50 handkerchiefs each size of 1 foot. I take one minute to cut a 1-foot handkerchief. So how long will it take to cut 50 handkerchiefs?

Find the next number in the following series:
6, 14, 26, 98, __?

what one word does the below rebus identifies?

What does this below rebus puzzle mean?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

Why is a river so rich ?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?