Tell me Your Opinion on the Difficultiness of these Engineering : Mech, Chem, Civil, Elec?

Many times, when trying to accomplish the impossible, the tools are not available because they haven't been invented yet, so one must first invent the tools and then do the impossible with them. Now it is possible.

In other words many jobs are much bigger than they appear to be at the onset and the schedule doesn't work out. This is why the sliding schedule was invented.

electrical is not mostly physics, it's mostly engineering courses, but it does have more math than the others and it explores physics of the atoms, optics and depending on the course quantum theory (necessary for electron devices and stuff), which other courses absolutely do not, although they have lots of classical mechanics courses.

Electrical is generally considered among the most difficult, also for these reasons, but all of them have difficult bits.

depends on the persons IQ level

all are easy if you have a very high IQ

Depends on your abilities, background, temperament, etc.

civil is well balanced....because it incorporates a little of all

They are equally difficult.