In each of the following questions, select the related word/ number/ letter from the given alternatives.

Heart : Cardiologist : : Eye : ? 

A girl bought some article of ₹ 200 from a shop and paid ₹ 1000 note as a payment to the shopkeeper. The shopkeeper was not having the change, so he has brought the change from the shop nearer to him. After keeping ₹ 200 in the drawer, he returned ₹ 800 to that girl. After some time the nearer shopkeeper told him that the ₹ 1000 note is fake and took away ₹ 1000 real note from him. What amount did the shopkeeper actually lose?

In the Jhanke rank, Prabha is 12 places ahead and Prabha is 15th from the last student. If the tableau is 4th in order of merit, then how many students are there in its class?

Which one of the given responses would be a meaningful order of the following?

1. Water tank 

2. Mug 

3. Bucket

4. Small bowl

5. Big glass

If “P” denotes “divided by”, “R” denotes “added to”, “S” denotes “subtracted from” and “Q” denotes “multiplied by”, then
48 P 4 R 3 Q 4 S 6 Q 4 = ?

Which is the odd number-pair?

Which letter will come in place of the question mark (?) in the following series?
FLO, H?Q, JPS, LRU

Mr X starts to walk 3 km towards East then he turns to his right and walks 4 km. Again he starts to walk 5 km towards East after that he turns to his left and walks 6 km. Finally he turns towards West and walks 8 km.If Mr X walked towards North from his starting point then, how much he covered the distance to reach the last point?