A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

You find yourself in a strange place guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there. What should you ask?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

I organized a small get together at my home.
In the party , i have a barrel with some whiskey in it.

Suddenly Guest 1 say 'I bet this barrel of whiskey is more than half full'.
'No, it's less than half full' Guest 2 replied.

I don't have any measuring instrument and without removing whiskey from it , how can i determine which of the guest is right ?

Solve the counting riddle by identifying the number of triangles in the given picture.

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

Can you spot the hidden clock in this family photo? Only the most eagle-eyed will find it!

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

Find the missing number in the series below

13 -21 34 -55 ? -144

Paul's height is six feet, he's an assistant at a butcher's shop and wears size 9 shoes. What does he weigh?