If A + B means A is the brother of B, and B - C means B is the sister of C, what is the relationship between A and C?

C. COUSIN

If 'ZEBRA' is coded as '26-5-2-18-1', what is the code for 'LION'?

A. 12-9-15-14

M, O, Q, S, ?

B. T

Complete the series: 3, 6, 11, 18, ?, 42.

A. 27

Choose the odd letter group: LMN, OPQ, RST, UVW, XYZ

A. LMN