Which of these is NOT celebrated in January?

 Black Friday

As per which of these calendars are we in the year 2018?

Gregorian Calendar

Where will the 2018 Commonwealth Games be hosted?

Australia

SpaceX is expected to fly two private citizens on a week-long trip around the Moon by late 2018.

True

Which is both the coldest month of the year in the Northern Hemisphere and the warmest month of the year in the Southern Hemisphere?

January

Which of these states is scheduled to have State elections in 2018?

 Rajasthan