Solution:

I am word "Introvert"

Solution:

Explained in picture below

Solution:

solution solved as below.

Solution:

17

Explanation:
Let us begin with the small square. Let us assume that their size is 1 inch.

Now, number of 1 inched squares = 12 (make sure that you don't count the 4 squares in middle twice.)
Number of 2 inched squares (double size) = 5.

Therefore, total squares = 12 + 5 = 17.

Solution:

Let us add the digits:
2 + 7 + 1 + 6 = 16
4 + 1 + 3 + 5 = 13
5 + 3 + 2 + 1 = 11
7 + 1 + 4 + 5 = 17

As you can see, only 2716 is a number whose digits add up to be a non prime number. Thus it is the odd one out.

Solution:

All except 42 were crushed means that all the ants except 42 were crushed beneath the man's foot. Hence, 42 ants are alive now.

Solution:

According to the given data,

6 x number of notebooks + 5 x number of notepads = 32

Here, we are sure that the number of notebooks and the number of notepads can only result in whole numbers. Thus, the respective values will be 2 and 4.

Solution:

Its a Paradox and therefore no anser

Solution:

Flat Tyre

Solution:

It is mentioned that 'all but fifteen pencils' were used by him. This phrase means that except fifteen, all his pencils were used.

Thus, he is left with fifteen pencils.