Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

In the image given, you can find several triangles. Can you count them all?

What kind of band never plays music?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?