Replace the question mark with the number below given a simple math problem.

I know a nine-letter word having only one vowel.
Do you ?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

Find out the number of circles in the given picture having Illusion

A dying old man wants to divide his entire land between his only two sons. Since his only wish is to treat them as equal as both of them have been too good to him, he wants to divide his land equally between them. The problem is that the land is significantly irregular in shape and thus there is no choice of cutting them into two equal halves.

Can you help him divide the land in a manner that both of his sons will be happy?

A Shopkeeper collects 71 rupees in the form of 20 paisa and 25 paisa.
He collects a total of 324 coins.

Can you tell me how many number of 20-paisa and 25-paisa he got?

Can you count the number of squares in the given picture?

Prove that the below maths equation is true.

8 + 8 = 91

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

Can you write down eight eights so that they add up to one thousand?