I shave every day, but my beard stays the same. What am I?

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?

The answer I give is yes, but what I mean is no. What was the question?

Find the next number in the series.
1 10 24 43 67 ?

I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?

What does the below image rebus riddle means ?

In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

What can you hold in your right hand, but never in your left hand?

Find the last number in the series below:

voN luJ yaM raM ---

What does below science rebus mean?

Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag