By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Count the number of triangles in the below picture?

Can you place three balls such that the equation shown in the picture holds true?

Consider this about a word: The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

If your uncle’s sister is not your aunt, what relation is she to you?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

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?

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

What occurs twice in a week, once in a year but never in a day?

There is a number which when you multiply by 3 and subtract 2 from the result, then the resulting number is the reverse of the actual number.

What is the smallest number that stands true on the statement?