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

abCD, fgHI, ?, stUV, abCD

Study the following information carefully and answer the questions given below.

Eight colleagues WM, WO, WP, WN, WZ, WS, WW and WA are sitting around a circular table and all are facing towards the centre and each of them represents eight different campuses viz. E, O, U, M, G, Q, R and T, but not necessarily in same order.
 WS sits second to the right of campus Q. Campus G is an immediate neighbour of campus T. WP and WZ are immediate neighbours of each other. Neither WP nor WZ is an immediate neighbour of WO and campus T. Two people sit between campus G and WO. WW and campus R are immediate neighbours. Only one person sits between WP and campus U. WA sits third to the left side of campus M and he is from the campus T. Campus Q is second to the left of campus O. Campus E is second to the right of WN who is not from the Campus G. WO is not from the campus R. WP sits second to the left of WN.

Which of the following combinations of campus and their representative is true? 

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

FU, LO, RI, ?

Which answer figure will complete the pattern of the question figure?

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
MN_O_NN_M_NO

Select the odd group of numbers. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g.13 – Operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)

DIRECTIONS: These questions are based on the following information.
Eight persons A, B, C, D, E, F, G and H are sitting in a row facing North. Only two persons are sitting to the left of D. A is adjacent to G and F. E is at one of the ends and three persons are sitting between him and G.

If C is adjacent to G and H is at one of the ends, then who is third to the left of G?

Select the letter that can replace the question0a mark (?) in the following series.
K, B, N, D, Q, F, T, H,?