Count the number of balls in picture below:

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

I cannot talk, but I always reply when spoken to. What am I?

One animal is different from the rest in the picture, and the challenge for the readers is to spot it in 5 seconds.

If 21x = 79x, what is the value of x?

You are an expert on paranormal activity and have been hired to locate a spirit haunting an old resort hotel. Strong signs indicate that the spirit lies behind one of four doors. The inscriptions on each door read as follows:

Door A: It's behind B or C
Door B: Its behind A or D
Door C: It's in here
Door D: It's not in here

Your psychic powers have told you three of the inscriptions are false, and one is true. Behind which door will you find the spirit?

What does does this rebus picture means ?

After teaching his class all about Roman numerals (X = 10, IX=9 and so on) the teacher asked his class to draw a single continuous line and turn IX into 6. The teacher's only stipulation was that the pen could not be lifted from the paper until the line was complete.

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

Why is it very easy to weigh a fish?