What always comes into a house through the keyhole?

The following "Brain Bat" means Slow Down.
S
L
O
W

Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

Five thieves looted a bank and they ran away in a car. The bank staff informed the police and they began the search of their car in their jeep. They found them on a road and chased them eventually catching them. The light that is used to fill the number plate was broken on the thieves' car. Also, the headlights of the jeep police were not working. How were the police able to catch the thieves then?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

I’m tall when I’m young, and I’m short when I’m old. What am I?

What has many teeth, but cannot bite?

I was born in a small house and I live in it all alone. No windows and no doors have been assigned to my house. The only way I can go out is by breaking through the walls of my house.

Who am I?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

What does this simple rebus mean?