Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

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?

The more you take me, the more you leave me behind.
Who Am I?

Can you divide the below-given shape into four equal and identical pieces?

There are three light switches outside a room. One of the switches is connected to a light bulb inside the room.
Each of the three switches can be either 'ON' or 'OFF'.

You are allowed to set each switch the way you want it and then enter the room(note: you can enter the room only once)

Your task is to then determine which switch controls the bulb?

How many words can a pen with half refill write?

While house hunting in London, I came across a very good leasehold property Discussing the lease the landlady told me:

'The property was originally on a 99 years lease and two-thirds of the time passed is equal to four-fifths of the time to come. Now work it out for yourself and see how many years are to go!

Why did Buffon take the goal with him after every Juventus match?

Which fur should we be getting from the Lion?

What kind of tree can you carry in your hand?