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.

What month of the year has 28 days?

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

What have one eye but still cannot see?

How can you take 2 from 5 and leave 4?

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 is more useful when it is broken?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

I am the fastest animal but cannot climb the tree. What am I?