What four weights can be used to balance from 1 to 30 pounds?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

Which is heavier: a ton of bricks or a ton of feathers?

Can you name an animal whose killing cannot be performed without spilling your own blood?

I am 5 letters long.
My first two tell you who I am
My first 3 could be a medicine
My last three reversed could be a young boy.
My 4th, 3rd and 2nd in that order could be a fruit drink.
If you have me you may hang me round your neck
WHAT AM I ?

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?

What is black when you buy it, red when you use it, and gray when you throw it away?

Can you name four days which start with the letter 'T'?

You are trapped into a death trap by the famous jigsaw killer. As usual, a screen flashes in front of you and explains you the trap game. There are 100 pearls kept in a bowl in front of you and an empty bowl. Among the 100 pearls, 50 are white and 50 are black. You can divide them as you like into the two bowls. Once you are done, you will pull a lever, which will turn the room pitch black. The bowls will move and shuffle around. In the dark, you have to pick up one pearl from any bowl. Once you do that, the room will flood with lights again. If the peral you have in your hand is white, you will be allowed to live, but if the pearl you picked is black, the room will be filled with poisonous gas and you will die. How will divide the pearls to increase your chances of survival?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?