By interchanging the given two signs which of the following equation will be correct?
 × and +

Which letter-cluster will replace the question mark (?) to complete the given series?

QML, PRC, OWT, NBK, ?

Four clusters have been given out of which three are alike in some manner and one is different. Select the one that is different.

Option

After interchanging the given two numbers and two signs what will be the values of equation (I) and (II) respectively?
× and ÷, 7 and 9

I. 8 × 3 ÷ 6 + 9 – 7
II. 9 – 7 × 1 + 6 ÷ 3

If + means −, − means ×, × means ÷, and ÷ means +, what will be the value of the following expression?
 45 × 9 ÷ 12 – 5 + 3

Select the option that is related to the fourth term in the same way as the first term is related to the second term and the fifth term is related to the sixth term.
 18 : 234 :: ? : 176 :: 14 : 126

Select the number from among the given options that can replace the question mark (?) in the following series. 

Question figure. 

Which of the following numbers will replace the question mark (?) in the given series?

1, 3, 6, 18, 36, 108,?