smart riddles

1.  2+3=8,
3+7=27,
4+5=32,
5+8=60,
6+7=72,
7+8=??

Solve it?  
Ans is 98.        
Explanation: 2*1+3*2=8,3*2+7*3=27,.....,7*6+8*7=98.



2. The below is a number puzzle. It should be read left to right, top to bottom.
1
1 1
2 1
1 2 1 1
1 1 1 2 2 1
? ? ? ? ? ?
? ? ? ? ? ? ? ?

Question 1: What is the next two rows of numbers?
Question 2: How was this reached?

Ans: 312211
         13112221
Explanation: 1 ->one '1' , This is written in digit in 2nd row
                                 11 ->two '1' , This is written in 3rd row and so on