After interchanging the given two digits 4 and 6, what will be the value of the following equation?
 5 + 3 × 4 – 6 ÷ 2 = ? 

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 replace the * signs and to balance the given equation.
 41 * 2 * 36 * 6 * 57 * 7 * 4 * 3

Select the correct combination of mathematical signs to replace the * signs and to balance the given equation.
 62 * 17 * 6 * 81 * 23 * 2 * 37

Select the correct combination of mathematical signs to replace the * signs and to balance the given equation.
 64 * 4 * 3 * 71 * 19 * 5 * 43

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 =?