Can you find the odd number in the following?

2716, 4135, 5321 and 7145

You can hear me, but you can't touch or see me.

What am I?

Where do you go to learn how to make ice cream?

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?

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

Next Number in the Series,

5, 16, 49, 104, ?

In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

A number with an interesting property:

When I divide it by 2, the remainder is 1.
When I divide it by 3, the remainder is 2.
When I divide it by 4, the remainder is 3.
When I divide it by 5, the remainder is 4.
When I divide it by 6, the remainder is 5.
When I divide it by 7, the remainder is 6.
When I divide it by 8, the remainder is 7.
When I divide it by 9, the remainder is 8.
When I divide it by 10, the remainder is 9.

It's not a small number, but it's not really big, either.
When I looked for a smaller number with this property I couldn't find one.

Can you find it?

What does this rebus mean?

O
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TIME