Count the number of balls in picture below:

81 x 9 = 801. What must you do to make the this equation true?

The chance of Mr John winning the lottery is 10%. All participants lined up and Mr John is 4th in the row. The first three participants lose the lottery.

What is the chance of Mr John now?

The following "Brain Bat" means Slow Down.
S
L
O
W

Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Why is the Hole below a Lock?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?