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's the only room from which no one can enter or leave

If Rajina's daughter is my daughter's mom, who am I to Rajina?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

Which number comes next in the number series?

2, 9, 30, 93, ?

Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?

If 21x = 79x, what is the value of x?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

How many times in a given day, minutes and hour clock comes in a straight line ?

John, a 5-year-old boy, was really fond of the chocolates. He asked his Mother to give him some money to buy his favourite chocolates. His Mother gave him $45. He went to the shopkeeper and asked, "How much is one chocolate for?". The shopkeeper said $3 for one chocolate. Also, if you give me the wrappers of three chocolates, I will give you one for the exchange.
In total, how much chocolate could John eat?