Why is Saturday stronger than Monday?

The host of a game show, offers the guest a choice of three doors. Behind one is a expensive car, but behind the other two are goats.
After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Before Mount Everest was discovered, what was the highest mountain in the world?

2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

Take one out and scratch my head, I am now black but once was red. What am I?

Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?