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?

What do you see in the image below

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

What's a single-digit number with no value?

What does below pictogram mean?

Find out which of the given views in the picture is accurately the top view of the given pyramid.

Using eight eights and addition only, can you make 1000?

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

What jumps when it walks and sits when it stands?

I have no life, but I can die. What am I?