What does below pictogram mean?

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

Why Wine Glass Stem is so long?

A bus driver was heading down a street in Mexico. He went right past a stop sign without stopping, he turned left where there was a "no left turn" sign, and he went the wrong way on a one-way street. Then he went on the left side of the road past a cop car. Still - he didn't break any traffic laws. Why not?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

Which letter of the alphabet has the most water?

Nodes are shown below and you need to connect them based on the following rule: Every node can be connected to the number of nodes inside them, i.e. the first node there is a value of 1 which indicates that the first node can connect to exactly one node only.Can you do it?

What is next number in the pattern below:

131 517 192 123 ?