Question
Four of the following five are alike in a certain way
based on the given arrangement and thus form a group. Which is the one that does not belong to that group? Study the following information carefully and answer the question given below: There are eight people A, B, C, D, E, F, G and H are living in a 8 floor Building on different floors from top to bottom (such as ground floor is numbered as 1 and top floor is numbered as 8) but not necessarily in the same order. Only one person lives between the floors of C and DÂ who lives on any floor below the floor of E. H lives on the floor immediately above the floor on which B lives. C lives on the third numbered floor. Only one person lives between the floors of E and F. E lives above F. Only two persons live between the floors of C and G.Solution
C lives on the third numbered floor. Only two persons live between the floors of C and G. Only one person lives between the floors of E and F. Â E lives above F. 
Only one person lives between the floors of C and D. C lives on one of the floor below the floor of E. H lives on the floor immediately above the floor on which B lives. 
168, 164, 155, 139, ?, 78
16, 20, 47, 63, 188, ?
8    13    36    123    ?   2585
827, 820, 806, 785, 757, ?
18, 30, 46, 66, 90, ?
64, 65, 73, 100, ?, 289
13, 14, 23, 48, 97, 178, ?
? , 864, 432, 144, 36, 7.2
43          86          258        ?             5160                     30960
...45Â Â Â Â 45.5Â Â Â Â Â Â 47 Â Â Â Â Â Â 49.5Â Â Â Â Â Â 53 Â Â Â Â Â Â ?
...
