Billionaires Quiz day 19

Hi Steemit friend,

Be the 1st person to answer the both questions, and you win the certain percentage of money from this post.
Hints are given, and you have to tell the name of the Billionaires.

First know the Rules

1. You can use any means you have at your disposal.
2. The first one to get both the answers right will win 60% of the earnings that I earn(author's reward) from this post.
3. Other 2 random people who get the answers right, will get 10% each, and names would be selected via a lucky draw.
4. You must resteem and upvote this post (this helps in increasing the prize money, good for all of us.)

Are you ready?

Question 1. Name the duo of co-founders.

Hint 1. They own the conglomerate which holds many subsideries including the search engine Google.

Hint 2. Their net wealth individually is getting close to 50 bn club.

Question 2. Name the Billionaire

Hint 1. This Brazilian born holds around 0.4% of Facebook's outstanding shares and currently lives in Singapore.
Hint 2. He is one of the co-founders of Facebook.

Results will be published after 7 days of the curation period.

This gives you opportunity to participate in another 6 contests of previous days of the week at the same time.

Thanks!