There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

How many letters are in the alphabet?

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?

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?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

What is common among 11, 69, and 88?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

Find out the missing number in the picture attached:

What can go up a chimney down, but can’t go down a chimney up?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98