What is black when you buy it, red when you use it, and gray when you throw it away?

Can you solve the rebus below?

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?

John went to buy some expensive, foreign chocolates. He only had Rs 100 with him. When he reached the shop, he got out and know that on those chocolates, there was a 15% import duty and 5% VAT.

How much worth chocolate should he buy so that he can accommodate it in Rs 100?

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

What does this say?

XLR8

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

What do you see in the image below

The horse jumps over the king.
Strangely there is absolutely no scratch on him.

Can anyone explain, how is this possible?