Questions

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

Be worlds apart

____ are the most intelligent mammals on earth.

Octopus belongs to the phylum

Isotones have always ______

Bee sting contains________________

In the following question, out of the four alternatives, choose the word which is opposite in meaning to the given word and click the button corresponding to it.
OBSTINATE

The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph.
P- And if I think about something which didn't happen I start thinking about all the other things which didn't happen.
Q- But there is only ever one thing which happened at a particular time and a particular place.
R- And there are an infinite number of things which didn't happen at that time and that place.
S- A lie is when you say something happened which didn't happen.

The artificial heart was invented by _________.