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!

I can write cow in 13 letters.

Can You?

What does this Rebus Picture means ?

After teaching his class all about Roman numerals (X = 10, IX=9 and so on) the teacher asked his class to draw a single continuous line and turn IX into 6. The teacher's only stipulation was that the pen could not be lifted from the paper until the line was complete.

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

What can go up a chimney down, but can’t go down a chimney up?

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

What does this mathematical rebus means ?