How can you tell a raw egg from a hard-boiled egg?

Prove that the below maths equation is true.

8 + 8 = 91

What has no start, end, or centre?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

Open a Laptop which is password protected. Hint for the password is given as below:

1 mobile 3 books 2 Boards 1 night 4 balls 2 lighters 1 ghost 1 hat 3 watches

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

You’re out on the water and see a boat filled with people. You look away for a second and look back again, but this time you don’t see a single person on the boat. Why? Hint: The boat did not sink.

During which month do people sleep the least?

John was piloting a plane behind a car but was never able to overtake it. Why?

Some friends went on a vacation to a resort. It was raining heavily and it kept raining for thirteen days.

When it rained in the morning, the afternoon was beautiful and when it rained in the afternoon, the day was blessed with a clear morning.

Overall, the friends experienced eleven nice mornings and twelve nice afternoons. Can you find out the number of days they spent on vacation?