Arrange the given words in the sequence in which they occur in the dictionary.

i. Opposite
ii. Optimist
iii. Orthodox
iv. Operation

Ravish is 7 years older than Vikas. Akash is 3 years younger than Ravish. Mohit is 5 years younger than Akash. Who is the youngest among all the four?

In the following question, two statements are given each followed by two conclusions I and II. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.

Statements:
(I) All pilots are brave men.
(II) All astronauts are pilots.

Conclusion:
(I) All astronauts are brave men.
(II) Some pilots are astronauts.

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

3, 7, 13, 27, 53, ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

VT, RP, NL, ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

DFI, JNS, TZG, ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

Arctic Ocean, Southern Ocean (Antarctic ocean), Indian Ocean, ?

Select the odd word/letters/number/number pair from the given alternatives.