If ’’624739854’’ 1 is added to all the even number and 1 is subtract from all the odd number, then what is the sum of the digits which is fifth from the left end and fourth from the right end?

Find out the odd word/letters/number pair/number from the given alternatives.

What will come in place of question mark(?) in the following number series?

a__bc__c___abb___bca___

What will be the value of 16 +19 × 51 ÷ 153 – 12 changing the symbols given below?
× and ÷

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 beat 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.
Statements: 
All goats are tigers.
All tigers are lions.
Conclusion: 
I. All tigers are goats.
II. All lions are tigers.
III. No goat is a lion.
IV. No lion is a goat. 

Ramesh walked 3 km. towards the west and then walked 2 km. after turning to the left. Then he turned to his right and walked 3 km. Finally, he turned to his right and walked 2 km. In which direction is he now from his starting point?

Select the set in which the numbers are related in the same way as are the numbers of the following sets. (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)

(18, 39, 60)
(27, 48, 69)