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.

There are two words one resembles the "state of rest" and the other is related to "writing/reading material".

Can you name these two words which also sound similar?

A time long back, there lived a king who ruled the great kingdom of Trojan House. As a part of the renovation of the kingdom to meet future security needs, he asked his chief architect to lay down a new play in a manner that all of his 10 castles are connected through five straight walls and each wall must connect four castles together. He also asked the architect that at least one of his castles should be protected with walls. The architect could not come up with any solution that served all of King's choices, but he suggested the best plan that you can see in the picture below. Can you find a better solution to serve the king's demand?

A bomb exploded in a room full of married couples and no one died. How?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

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

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

What do you call a fish without an eye?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation. Conditions: Each must be used exactly once and no other numbers or symbols can be used.