A Telephone or an Alarm...

Answer: C) Stars Explanation: Stars are what that come out at night without being called and are lost in the day without being stolen.

Answer: D) Gloomy Explanation: The given words are related in a way that, an optimist is a person whose outlook is cheerful. Similarly, a pessimist is a person whose outlook is gloomy.   The answer is not (b) because a pessimist does not have to be mean. Options (c) and (a) are incorrect because neither words describe the outlook of a pessimist.   Hence, Optimist is to cheerful as Pessimist is to Gloomy.

Answer: A) Alliteration Explanation: Alliteration is the one-word substitute for Commencement of words with the same letter.   Alliteration is a figure of speech which is identified as the occurrence of the same letter or sound at the beginning of adjacent or closely connected words.

A Keyboard has keys but no locks.

Answer: A) Grass Explanation: Cup is used to drink something with the help of lips. Similarly, birds collect grass with the help of beak to make her nest.   Hence, Cup : Lip :: Bird : Grass.

Answer: D) All the above Explanation:

Answer: D) Emit Explanation: Here the given words represent synonyms. Exhibit and Display are synonyms for each other. Similarly, Send and Emit are synonyms for each other.   Hence, Exhibit : display :: send : Emit.