Question

part 1
http://imgur.com/yCiva
part 2
http://imgur.com/ZkGkI

Answer 1

I got this much done;
void setup()
{
size (200, 200);
}

void draw()
{
background(255);
int numLines = 20;
float h = height/numLines;
float w = width/numLines;
for (int i=0; i<numLines; i++) {
line(0, i*h, width, i*h);
line(i*w, 0, i*w, height);
ellipse(20, 20, 10, 10);
fill(255, 0, 0);
rect(55, 45, 10, 10);
fill(255, 0, 0);
triangle(80, 75, 75, 84, 84, 84);