Find the missing number?
15, 31, 64, 131, ?

If - means ÷, + means ×, ÷ means -, × means +, then which of the following equations is correct? 

Direction: In the following question, select the related letters from the given alternatives.

Lion: Deer:: Mongoose:? 

Out of four figures which figure will best represent the relationship among st the classes:
(1) Sparrow
(2) Birds
(3) Mice

If the above alphabet are divided into two equal halves from A to M and N to Z, which letter in the later half would be corresponding to the letter J? 

How many triangles are there in the figure given below?
 

Direction: Two Statements are given following by four conclusions, I, II, III and IV. You have to consider that Statements to be true, even if they seem to be at variance from commonly known facts. You are to decide which of the given conclusions can definitely be drawn from the given Statements. Indicate your answer.

Statement: 
All branches are flower
All flowers are leaves.
 Conclusion: 
 ( I ) All branches are leaves.
 ( II ) All leaves are branches.
 ( III ) All flowers are branches.
 ( IV ) Some leaves are branches.

Directions: In this question, four words have been given, out of which three are alike in some manner and the for one is different. Choose out the odd one.