Solution:

The girl was standing on the bottom ladder. Hence no injury.

Solution:

6

Explanation:
Key1: 3 attempts for 3 gates.
Key2: 2 attempts for remaining 2 gates.
Key3: 1 attempts for the last gate.

Solution:

19.

Note: Many of you have jumped to solution 21.

Solution:

February(just 28 days)

Solution:

Cup-8

Explanation:
This might be tricky for mobile users where the bottom cup is difficult to focus on.

Solution:

47.

Explanation:
Aarav is 6 years old and his sister Arshika is half of his age, which indicates Arshika age is 3 years less than Aarav's age. So when Aarav is 50, Arshika will be 47

Solution:

Because Thibaut Courtois is goalkeeper(goal + keeper)

Solution:

0%. as it will be night in 72 hours and of course, there will be no sun

Solution:

Parents.

Solution:

0(zero) off course.