A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
0.5, 2, 3.5, ? , 6.5

The second number in the given number-pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) are followed in all the number-pairs EXCEPT one. Find that odd number-pair.

Direction: Study the information and answer the following questions.
In a certain code language "the company struck among" is coded as "Z6X F2G H4Z L5H". "Under that relevant part" is coded as "U3G U3K U7I S4F". "For extreme years date" is coded as "F6V F3W T4B S2V". 

What is the code for 'Refuses' in the given code language? 

The series given below contains a sequence of numbers. Identify the incorrect combination.
1, 8, 3, 6, 5, 4, 6

Which of the following numbers will replace the question mark (?) in the given series?

121, 169, 289, ?, 529, 841

Direction: In the question figures below, a piece of paper is folded and cut as shown below. Find out from the answer figures how it will appear when opened.
Question figure

Six persons are sitting in two straight rows, facing north. Their names are Farhan, Utkarsh, Yugal, Krishna, Chaman and Manish. Farhan and Manish are sitting at diagonally opposite ends. Utkarsh is in the top row and to the immediate right of Farhan. Krishna is second to the left of Manish while Yugal and Krishna are not in the same row. Who is sitting at the diagonally opposite end to Yugal? 

Study the following information carefully and answer the questions given below:
 
Twelve people are sitting in two parallel rows containing six people each, in such a way that there is an equal distance between adjacent persons. In row-1 K, J, I, H, G and V are seated and all of them are facing South. In row-2 Z, Y, X, W, E and U are seated and all of them are facing North. Therefore, in the given seating arrangement each member seated in a row faces another member of the other row.
K sits third to the right of G. Z sits second to the right of E. Neither Z nor E faces G or K. Z does not sits at any of the extreme end. I does not faces Z or E and I does not sits at any of the extreme end. Only one person sits between U and X. Neither U nor X faces G. X does not sits at any of the extreme end. Only one person sit between V and J. U is not an immediate neighbour of Y. Z does not faces V. W sit extreme left end of the row.

U is related to V in the same way as J is related to X. In the same pattern which of the following is related to K?