If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

There was a greenhouse.
Inside the greenhouse, there is a white house.
Inside the white house, there is a red house.
Inside the red house, there are lots of babies.

What is It?

Find the last number in the series below:

voN luJ yaM raM ---

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

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 ?

Find the missing letter in the last circle logically in the given below picture.

Who has married many women but was never married?

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 have two coins.
* One of the coins is a faulty coin having a tail on both sides of it.
* The other coin is a perfect coin (heads on side and tail on other).

I blindfold myself and pick a coin and put the coin on the table. The face of the coin towards the sky is the tail.

What is the probability that another side is also tail?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?