Life with a PURPOSE

Today after track, I had dinner at the Bukit Timah wet market.
Then I don't know his name.
He gave us 5 IQ quests but use logic and abit of thinking out of box.
So here's the 2 questions only...
1st: If you have 8 eggs. 7 of them is 10g each and only 1 of them is 9g.
The i give you a balancer.
You only can use it 2 times and tell me which egg is the 9g one.

2nd: I give you a 5litre jug and a 3 litre jug.
You are suppose to get 4 litres of water accurately by using the 2 jug.
You are given unlimited amount of water.

If you want to know the answer, find me, sms me.
And i will also give you the other 3 questions that i didn't post!
Tata!

Btw, during these questions, we found human nature.
5 mins after the questions - tell us the answer leh.
10 mins after the questions - your question no logic one lah!
20 mins after the questions - people starts giving crap and lame answers!
30 mins after the questions - the person who gave the questions is being scolded!
LOL!!!