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.

Rectify the following equality 101 - 102 = 1 by moving just one digit.

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

What has no start, end, or centre?

What does below science rebus mean?

Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?