In each of the number-pairs, the second number is obtained by performing a certain mathematical operation on the first number. Three of the following pairs follow the same pattern and thus form a group. Select the number-pair that does NOT belong to that

Select the letter-cluster from among the given options that can replace the question mark (?) in the following series. BOY, FMU, ?, NIM, RGI

If in a code language, 'chef’ is coded as 'glass', 'glass' is coded as 'cup', 'cup' is coded as 'cool', and 'cool' is coded as 'rich', then who cooks the food?

Select the letter-cluster from among the given options that can replace the question mark (?) and continue the given series. KWX, NSA, QOD, TKG, WGJ, ?

Select the option that will fill in the blank and complete the given series. ABCD, ________, ΧΥΖΑ, XXXX, UVWX, UUUU

If ÷ means addition, × means subtraction, + means multiplication and – means division then 40 – 20 + 6 × 2 ÷ 5 = ?

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

HUMAN is related to HOMO SAPIENS in the same way as MANGO is related to