By Interchanging the given two numbers which of the following equation will be not correct?
 3 and 8

After interchanging the given two signs, what will be the value of the given equation?
 ×  and ÷
 47 + 13 ÷ 65 × 5 – 16

If I denotes ‘÷’, J denotes ‘×’, K denotes ‘−’ and L denotes ‘+’, then what will come in place of ‘?’ in the following equation?
 37 L 25 K (14 J 2) L (2 J 13) K (62 I 31) = ?

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 = ?

If P denotes ‘×’, Q denotes ‘÷’, R denotes ‘+’ and S denotes ‘−’, then what will come in place of ‘?’ in the following equation?
 (40 Q 4) P 5 R (3 P 6) S (7 P 8) R 21 =?

Select the correct combination of mathematical signs to replace the * signs and to balance the given equation.
 41 * 2 * 36 * 6 * 57 * 7 * 4 * 3

In a certain language, if '+' means 'subtraction', '×' means 'division', '÷' means 'addition', and '–' means 'multiplication', then find the value of the following expression (BODMAS rule does not apply in that language).
 8 ÷ 16 × 4 + 2 – 3

Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
 25 *5 * 10 * 2 * 4 * 10