Yes
yes
On the hockey stick, you have the shaft (the part you hold), and the blade (the part that touches the ice). In the blade, you have the Heel, which is the part connected to the shaft. Then you have the toe, which is the tip of the blade, or the end which does not connect to the shaft.
the curve from the shaft to the tip of the blade
yes
The area near the bottom of the shaft where the width of the shaft decreases as it gets closer to the blade.
yes but it's complicated to do. you have to put a layer or two of tape inside the shaft and then heat it up and glue it. depending on how much the blade was it may not be worth the hassle.
Obtuse.
Yes, the blades are just glued into the shaft. Use a heat gun to melt down the glue, pull out the blade and put it in your new shaft.
No, a player will get penalized for continuing to play with a broken hockey stick. Sometimes, a hockey shaft and blade are two pieces and can be replaced. Otherwise, you usually have to get a new one.
That's a little like asking "how tall is a blue house"? Since most Intermediate sticks stop at a flex of 67 (Bauer) one could assume a stick with a flex of 77 is a Senior stick. Most Senior sticks are 60 inches long.
Of course the blade AND shaft flex on all sticks. But the amount of flex is dictated predominately by the structure, materials and the length of the overall stick. If the heal (or the rear part of the blade) is damaged, you will get movement separate from the shaft. This is a real problem. But overall, a modern hockey stick, both shaft and blade, will work as a solid flexing piece if it is fitted properly. For your question, the number 95 reference is the makers reference to the "flex" of the shaft and not the blade. This 95 is a "stiffer" stick as opposed to a 85. The lower number equals more flex. However, the overall "flex" will be reduced if any length is cut off (think a longer stick bends easier than a short). hope this helps.
Try heating it with a heat gun. You might try a blow dryer, but I do not think it will get hot enough. Make sure you do not overheat and crack the shaft.