I'm so sick of wordcount...

Why? Why do they have to set a high word limit when I've got absolutely nothing to say about a topic or when I don't know what the answer is
And a low word limit when I consider the topic easy

now.. a 1500 words essay
a) 3 x 500 words essay is no good.. i mean.. each topic worth 500 words??
b) 1 x 1500 words essay.. now i might not have enough stuff in my brain to write 1500 words

Again.. 1200 words essay, divided into 4 questions
2 questions I can do, 2 questions I can't do
for the questions that i can do.. 300 words is too little
for the questions i can't do.. well.. 300 is good.. but the thing is i have absolutely nothing to say because i don't know the freaking answer

I reckon the perfect word limit is around 800 (+/- 10%) for an essay
and by that I mean ONE ESSAY WITH ONE TOPIC
not one essay divided into numerous topics or one bloody long essay