If '+' means '-', '-' means ' ÷, ÷' means '×' and '×' means ' + ', what will come in place of the question mark (?) in the following equation?
18-3×14÷2+12=?

Given: 

'+' means '-'

'-' means '÷

÷' means '×'

'×' means ' + '

18 - 3 × 14 ÷ 2 + 12 = ?

After interchanging the sing we get following equation - 

18 ÷ 3 + 14 × 2 - 12 = ?

6 + 14×2 - 12 = ?

6 + 28 - 12 = ?

34 - 12 = ?

22 = ?

Correct answer is (c).