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.

If you say my name, I will no longer exist. What am I?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

He does not have any heart but still, He manages to live.
If you kill him, you will eventually die but yet you kill him.
He cannot run, who is He?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

Can you solve the below tricky visual equation?

Why do we preferably have round manhole covers and not square ones?

Can you replace the question mark with the correct number in the below table sequence?

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

There are forty elephants and they have forty-fore heads. How can this be possible?