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.

I make two people out of one. What am I?

I know a nine-letter word having only one vowel.
Do you ?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

It can be easily calculated that the digits 0 to 9 can be arranged into 3628800 distinct ten-digit numbers.

But do you know how many of these numbers are prime?

1 rabbit saw 9 elephants while going to the river. Every elephant saw 3 monkeys going toward the river. Each monkey had 1 parrot in each hand. How many animals are going towards the river?

Which Burger Is Different in below image?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

The dirtier I get, the whiter I look. Who am I?