What happened when the wheel was invented?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

You have 1023 apples and 10 bags. You have to distribute these apples in these 10 bags in any way you choose. But when I ask for a certain number of apples you have to give them in terms of bags without transferring the apples from other bags. How do you distribute the apples?

Eight Chelsea player makes the following statements :

1. Seven of us are lying here.
2. Six of us are lying here.
3. Five of us are lying here.
4. Five of us are lying here.
5. Four of us are lying here.
6. Three of us are lying here.
7. My name is Torres.
8. My name is Lampard.

The last two are Lampard and Torres or maybe Torres and Lampard.
So can you deduce which of the last two is Lampard or Torres?

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

What does the below rebus riddle means?

Can it be possible to build a house that has all its four walls facing towards the South?

Who always enjoys poor health?

How can one talk without saying a single word?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?