Question 7471
 TWO
+TWO
=Four 
 Before solving the questions,you posted themin wrong category.
 That is a very serious mistake.

 Sol:
  8 3 6 
  8 3 6
--------
1 6 7 2  
 Or
  8 4 6 
  8 4 6
--------
1 6 9 2  

Maybe there are other solutions, so this is not a good question.


2. Place operation symbols and any necessary grouping symbols in the sentence below to make it correct. 
7 7 7 7 7 7 7 = 43 ,

 Sol: Note 49-7+1 = 43,
 7*7-7*7/7+7/7

 Also,maybe there are other solutions.

 Kenny