Find the next number in the sequence

5 12 24 36 ?

What is next number in the pattern below:

131 517 192 123 ?

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?

Replace the question mark with the correct number.

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.

Find the number of squares in the below-given picture.

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

How do you go from 98 to 720 using just one letter?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

What is common among 11, 69, and 88?