_____ is a decentralized system for verifying that the

Select the most appropriate meaning of the given idiom:

Clouds on the horizon

Select the most appropriate ANTONYM of the given word.

Generous

Select the most appropriate synonym of the given word.

Regime

Choose the word opposite in meaning to the given word.

Virtuous

Select the antonym of the word "Generous":

Select the most appropriate synonym of the given word.

DETAIN

A person who exercises power in a cruel way

Choose the incorrectly spelt word. 

Find the appropriate answer.

There has been a serious kerfuffle in the news about the buttons and their relative size.