I have 2 Long Sides

Can you solve it?

E + E + E = 15

E + C = 8

C + E + B = 10

B + C * J = ????

Figure out how many trailing zeroes are in 1000! 

If 

111 = 13

112 = 24

113 = 35

114 = 46

115 = 57

Then

116 = .....???

People buy me to eat but never eat me.

What I am?