Why is the longest human nose just 11 inches?

Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3.

(You can use one number only once)

Find the last number in the series below:

voN luJ yaM raM ---

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

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

There are two words one resembles the "state of rest" and the other is related to "writing/reading material".

Can you name these two words which also sound similar?

You know three triplets: Frank John and Wayne (need to return your money). Frank always tells the truth while John and Wayne always lie. You meet one of them on the road and can ask him a three-word question.
Which question, will you ask?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

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

If,

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

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

D + F = ?