Can you spot the hidden girl in the picture below?

Two girls were born to the same mother, on the same day, at the same time, in the same month and year and yet they're not twins. How can this be ?

If eleven plus two equals one, what does nine plus five equal?

Can you find a five letter word that is left with only two letters if one is removed?

Which is heavier: a ton of bricks or a ton of feathers?

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

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?

You see me once in June, twice in November, and not at all in May. What am I?

There are three boxes which are labeled as Rs100, Rs150, and Rs200. One box contains two notes of Rs. 50. The second box contains one note of Rs50 and one note of Rs100 The third box contains two Rs. 100 notes. All boxes are labeled incorrectly.

What is the minimum number of boxes you must check in order to label all boxes correctly?