What breaks yet never falls, and what falls yet never breaks?

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

What's a single-digit number with no value?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

Can it be possible to build a house that has all its four walls facing towards the South?

When monkey rotate the gear, which mark will be hit 1 or 2 ?

If a shopkeeper can only place the weights on one side of the common balance. For example, if he has weights 1 and 3 then he can measure 1, 3 and 4 only. Now the question is how many minimum weights and names of the weights you will need to measure all weights from 1 to 1000? This is a fairly simple problem and very easy to prove also.

Why Wine Glass Stem is so long?

Can you solve the below geography rebus by decoding the below rebus ?

It is a nine-letter word.
The exact opposite of the phrase "friendly and outgoing"
It contains the word "over".
It starts will a vowel.

What is it?