People make me, save me, change me, raise me. What am I?

Take one out and scratch my head, I am now black but once was red. What am I?

How many triangles can you count in the figure given?

Can you find the missing piece of the Porsche?

If a boy blows 18 bubbles,
Then pops 6 eats 7 and then
He pops 5 and blows 1.
How many are left?

There are 3 apples in the basket and you take away 2. How many apples do you have now?

A horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?

You are on your way to visit your Friend, who lives at the end of the hill. It is his birthday, and you want to give him the cakes you have made. Between your house and his house, you have to cross 5 bridges, and as it goes in the land of make believe, there is a troll under every bridge! Each troll, quite rightly, insists that you pay a troll toll. Before you can cross their bridge, you have to give them half of the cakes you are carrying, but as they are kind trolls, they each give you back a single cake. How many cakes do you have to leave home to make sure that you arrive at a friend's house with exactly two

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

I am quite hot but become too cold if you remove the first two letters. What am I?