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

What is it?

Using the clues below, what four numbers am I thinking of?

The sum of all the numbers is 31.
One number is odd.
The highest number minus the lowest number is 7.
If you subtract the middle two numbers, it equals two.
There are no duplicate numbers.

If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?

What is the end of everything?

It begins where the time ends.
Its second is an expression of surprise.
Its third is a question.
Its fourth is urinate.
It ends with a drink.

Which country it is?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

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