It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

What does this mean?

CCCCCCC

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

The sum of a mother, her baby and her dog's weight is 170 Kg. How much does the baby weigh if the mother weighs 100 kg more than the combined weight of the baby and the dog, and the dog weighs 60 per cent less than the baby?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100