My brakes on my bicycle are hard to squeeze on the handle bars

SOURCE: Brake assembly

I did no find assembly instructions specific to this model.  From what I see in pictures and descriptions it looks like a standard caliper brake on the front wheel.  The knob/plug on the cable should fit into a groove and hole on the brake lever if the cable is slack enough to make the connection.  You may have to loosen the cable tension nuts at the caliper and at the brake handle (labeled 1 & 2 in the instructions) to get enough slack.
Generic instructions are at: http://www.huffy.com/resources/pdfs/multispeed_manual.pdf
See pages 21-23 for instructions about adjusting the brakes.  You will have to do this after making the connection and it shows the various cable tension nuts that you can use to get enough slack in the cable to connect it.  If you loosen the cable tension nuts (1&2) enough you should be able to remove the cable from the slot through the housing, expose the attachment slot in the brake handle by pressing it against the handlebar, insert the knob/plug into the hole and then work the cable back into the slot in the housing.  Tighten up the tension nuts and make the final adjustments as described in the instructions.

SOURCE: how to raise the handle bar in huffy 14

The silver bolt on the neck behind the handlebars. Losen it off a few turns, and the entire stem can be raised and lowered. Be sure not to raise it too much, should be a minimum mark, or else leave a good inch or two still in the frame, and tighten it back up. Make sure it's aligned with the front wheel though!

SOURCE: do you have a clock

I don't believe there are clocks made for bicycles. However bicycle computers show the time. They normally have several functions and you can set which ever you want to be shown. They can be bought at most bicycle shops or if you look them up in Google there's plenty of online shops selling them.

SOURCE: How do I raise the

http://www.sheldonbrown.com/handsup.html

Simply flipping the stem over or getting one with a different rise and reach might give you the added height you need. In minutes a Bicycle Shop could swap any number of them onto your bike for you to try.

SOURCE: rear brake failure no pressure at

http://www.parktool.com/blog/repair-help/categories/brake-service-and-repair