The word "such" is normally used to express what something is like, or to express the type of thing it is. Here are a few examples.
"A man such as he" = A man like him. A man of the same type.
"Why have there been such problems?" = Why have there been problems like this? Why have there been problems to this extent?
"That's such a difficult question." = That question really is difficult.
(It might help if you think about it like this: Some questions belong to the category "easy" and some questions belong to the category "difficult" - that particular question clearly belongs to the category "difficult".)
"Why are you making such a fuss?" = Why are you making a fuss of this type? Why are you fussing to such an extent?
"There were plates, knives, forks, and other such things" = There were plates, knives, forks, and other things similar to that.
(Sometimes people use the word "suchlike": "There were plates, knives, forks, and suchlike.")
"The rain was such that I couldn't go out." = It rained enough to stop me from going out. The rain that fell was of particularly strong and heavy type.