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?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

There is a five-letter word which has 3 consonants(all are same) and 2 different vowels.
Also, something wrong is associated with the word.

Can you name it?

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

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

If you say my name, I will no longer exist. What am I?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

Count the number of squares in the picture below.

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?