How does lymph work in the absorption of fats?

Compared to blood,our lymph has:

Lymph flows in the lymph vessels due to

What do lymph nodes trap to prevent them from entering the blood?

How many of the following statements are correct regarding lymph?
$I$ - It is a colourless fluid.
$II$ - It contains specialized lymphocytes.
$III$ - It is responsible for immunity.
$IV$ - It is an important carrier for nutrients and hormones.
$V$ - Starch is absorbed by lymph present in the lacteals of the intestinal villi.

Which is the most important center for lymph formation?