Riddles of Everybody wants me, but rarely am I liked. Many people have me, but few can use me right. What am I?

It's shorter than the rest, but when you're happy, you raise it up like it's the best.
What is it?

Answer

Thumb.

Find the number abc
5056b
- b58b8
= a4c25

Answer

abc = 137

How many times can you take 6 to 36?

Answer

Only one, the next time you take 6 to 30

There are three switches downstairs. Each corresponds to one of the three light bulbs in the attic. You can turn the switches on and off and leave them in any position.
How would you identify which switch corresponds to which light bulb, if you are only allowed one trip upstairs?

Answer

Keep the first bulb switched on for a few minutes. It gets warm, right? So all you have to do then is ... switch it off, switch another one on, walk into the room with bulbs, touch them and tell which one was switched on as the first one (the warm one) and the others can be easily identified

Wash me and I won't be clean, don't wash me, and I'll be clean. What am I?

Answer

Water.

What do you need most to enter your home?

Answer

To be outside.

I am not alive but I grow. I don't have lungs but I need air.
What am i?

Answer

Fire

You feel me 30 times in june, 30 times in april, but not in march. What am I?

Answer

Days.