If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

No matter how little or how much you use me, you change me every month. What am I?

What does a man do only once in his lifetime, but women do once a year after they are 29?

A man has to get a fox, a chicken, and a sack of corn across a river.

He has a rowboat, and it can only carry him and one other thing.
If the fox and the chicken are left together, the fox will eat the chicken.
If the chicken and the corn are left together, the chicken will eat the corn.

How does the man do it?

When it is alive we sing, when it is dead we clap our hands. What is it?

Rearrange the letters in "new door" to make one word.

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

Which country gets ill every time?

A number can be multiplied by multiple of nine
i.e 9 18 27 36 45 ...

and the resulting number consist of only one digit.

Can you identify the number ?

By using all numbers, i.e. 123456789 and subtraction/addition, operators number 100 can be formed in many ways.
Example: 98 + 7 + 6 - 5 - 4 - 3 + 2 - 1 = 100

But if we add a condition use of the number 32 is a must. Then there are limited solutions.
One of such solution is: 9 - 8 + 76 + 54 - 32 + 1 = 100

Can you tell me any other solution?