How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

Before Balboa discovered the Pacific Ocean, which was the largest ocean before that?

A bomb exploded in a room full of married couples and no one died. How?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

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

With the help clues provided in the image, can you find the 5 digit key?

Which of the below owl is odd one out?

In a family supper, a grandfather, a grandmother, two fathers, two mothers, four children, three grandchildren, one brother, two sisters, two sons, two daughters, one daughter-in-law, and one mother-in-law need to sit at a table.

There are only seven chairs available at the place. How many more chairs do they have to borrow so that everyone can sit down together for the suppers if everybody requires a separate chair?

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

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