By using 'because' continuously three times, can you make an English statement ?

A sundial has the fewest moving parts of any timepiece. Which has the most?

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?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

What does this mean?

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

A man has eighty-one cows ( numbered 1,2,3...81 as such). The beauty is that cow no. 1 gives 1ltr of milk, cow no. 2 gives 2ltrs of milk and so on. The man wants to equally distribute the cows among his nine sons so that each one of them gets the same quantity of milk.

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

In an Art Gallary, When the clock hit 11 am, Artist hung the painting number 30. When it struck 4 pm, he hung painting number 240 and when it struck 7:30 pm, he hung painting number 315.

Can you determine, which painting number will he hang when the time is 9:20 pm?

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?