Easy
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medium
Hard
very hard
100

How many planets in our solar system?

9 planets

100

How many hours does it take to finish earth rotation?

24 hours

100

what is the normal height reached when you jump in the moon?

9.8 feet

200

How many seasons available in a year?

4 seasons

200

what is the length of the sun?

1.392 length

300

what is the speed of Earth rotation?

1.037 miles per hours

500

How many folds make a paper thickness to reach 0.25 miles? 

25 folds

500

How many folds make a paper thickness to reach the moon?

45 folds