In following questions, one term in number series is incorrect. - Find out the incorrect number 1, 5, 9, 16, 25, 37, 49

B. 15

Choose or find odd letter group - RTW , QOM , IKG , IKM , BDF

A. RTW

Complete analogous pair - Forecast : Future : : Regret : ?

C. PAST

If (x3 + 1/x3) = 52, the value of (x + 1/x) is :

A. 4

Six persons A, B, C, D, E and F are sitting in two rows, three in each.
E is not at the end of any row.
D is second to the left of F.
C, the neighbour of E, is sitting diagonally opposite D.
B is the neighbour of F. Which of the following are in one of two rows ?

C. DBF