Why do we preferably have round manhole covers and not square ones?

How could a baby fall out of a twenty-story building onto the ground and live?

There are forty elephants and they have forty-fore heads. How can this be possible?

Given below is simple addition with a defined pattern pattern:
7 + 7 = 2
8 + 8 = 4
8 + 5 = 1
6 + 9 = 3
10 + 11 = 9

Can you analyze the pattern and find out the answer for:

4 + 9 = ?

what does this below rebus represent identXQQQQQME

Can you write down eight eights so that they add up to one thousand?

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?

John was born on March 5, 1970, in Delhi, India. Jacob was born 25 days before John. The year when they took birth, Republic Day fell on Monday.

Can you find out on what day was Jacob born?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?