How smart are you

[Tread]

Originally Posted by Tread

3. Who makes it has no need of it. Who buys it has no use for it. Who uses it has no knowledge of it.

Kirsty?s answer was close.

Originally Posted by Tread

4. I am always hungry, I must be fed. The finger I lick will soon turn red.

I?m loved when I?m small, and feared when I?m tall.
You can catch me, feel me, but don?t grab me.
You could say I?m alive but commonly deny me as life form. You know how to kill me and have no moral problems doing it.
I?m very important for human life style, but I?m fight every day.

Originally Posted by Tread

5. You are allowed to use only two numbers and no symbols. What is the biggest number you can express with them?

Originally Posted by Tread

5. O.K. bad explained by me. Two single numbers, 0-9. For example combine a 3 and a 3. No symbols, no words, only the two numbers.
900 contains one number too much (a 9 or a 0). But it?s bigger than 900.

Thought this one not to the end. The probably bigger challenge is to write it on a forum, and not in a usual text program.

Originally Posted by shadows

Nice one. Looking back, I can see your wordplay there. Neat little play on words.

Thanks, I also tried to bait you with friend of bird and your relationship with crows.