Answers

2014-03-07T14:03:23+05:30
One because in a sentence is natural but when its 3 because its a bit hard, but not impossible because of the creativity. 

Thats all the upper sentence have 3 because. 
3 2 3
2014-03-07T15:15:24+05:30
A sentence cannot start with because because because is a conjuction.
2 5 2