If ‘-’ stands for ‘division’, ‘+’ for ‘multiplication’, ‘÷’ for ‘subtraction’ and ‘×’ for ‘addition’, which one of the following equations is correct? 

If ‘F’ means ‘+’ , ‘P’ means ‘x’, ‘T’ means ‘÷’ and ‘K’ means ‘-‘ then 40 T 8 F 16 P 4 K 13=?

If ‘+’ means ‘divided by’ ‘-’ means ‘add’, ‘×’ means ‘minus’ and ‘/’ means ‘multiplied by’, what will be the value of the following expression?
[{(5 × 10) - (16/4)} + (15 - 9)]/0

Which of the following interchanges in signs will make the given equation correct?

17- 15 x 5 = 250

Which of the mathematical signs should be interchanged in the given equation to make it mathematically correct?

31 ÷ 14 × 9 + 3 − 7 = 66

By interchanging the given two signs and numbers which of the following equation will be correct?
 + and –, 7 and 6

By interchanging the given two signs and numbers which of the following equation will be not correct?
 ÷ and ×, 1 and 3

If M denotes ‘−’, N denotes ‘÷’, O denotes ‘×’ and P denotes ‘+’, then what will come in place of ‘?’ in the following equation?
(38 O 13) N 19 M 27 P (38 O 3) P 43 M 68 = ?