In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?

What is so fragile that saying its name breaks it?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

What number do you get when you multiply all of the numbers on a telephone's number pad?

What month of the year has 28 days?

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?

Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10