If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

When 99 is considered higher than 100?

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

Krish is 45 years old and his mother Crishtina is 73 years old.

Can you find out how many years ago, his mother was three times his age?

What happened when the wheel was invented?

In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?

Before the start of the car race, John and Jacob have the same amount of fuel in their car. With this fuel, John can drive for 4 hours while Jacob can drive five hours.
After a time they realize that the amount of fuel left in John's car is 1/4th of the fuel in Jacob's.

For how long they are racing?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

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?