Count the Triangle in the figure given below:

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?

Can you identify the Oscar-winning movie from the rebus below?

Find the next number in the sequence

5 12 24 36 ?

When 99 is considered higher than 100?

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

I am thinking of a five-digit number such that:
The first and last digits are the same, their submission is an even number and multiplication is an odd number and is equal to the fourth number. Subtract five from it and we obtain the second number. Then divide into exact halves and we get the 3rd number.

What number I am thinking of?

A newspaper is supposed to have 60 pages.Pages 14 and 21 are missing from the newspaper.

Can you tell me , Which other pages won't be there as well ?