While house hunting in London, I came across a very good leasehold property Discussing the lease the landlady told me:

'The property was originally on a 99 years lease and two-thirds of the time passed is equal to four-fifths of the time to come. Now work it out for yourself and see how many years are to go!

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

Why 1729 is a magic number? Answer Logically.

An inspection by the superintendent of St. Joseph School was scheduled on the next day. The class teacher Jenifer knew that he would be asking questions from her class and she would have to choose a pupil to answer. To offer a perfect impression over him, the teacher explained certain instructions to the students to maximise the chances of getting correct answer every time.

What did she say to the students?

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

I look at you, you look at me I raise my right, you raise your left. What am I?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?