Cap.hany, please habibi, can you post in a normal font? Also, controllers are not captains! You will get more replies if you remember that....
In the spirit of comradeship (Eid Mubarak, by the way), after 13 years or so in ATC, the following is a partial list of situations I've faced. Most controllers will have a similar list.
Radar failure
Radio failure (at ATC - resolved with use of stand-by radios)
Radio failure (aircraft)
Engine failures
Assymetric flap deployment
Partial hydraulic failures/hydraulic leaks
Nosewheel steering failure
Cracked windshields (yes, plural!)
Level/altitude busts
Language "issues"
Weather avoidance
Unknown fast traffic popping up into controlled airspace ("one o'clock, half a mile, going up....")
Zone infringements
Runway infringements
Flooded taxiway
Overheating Spitfire shutting down on a narrow taxiway
Fire in avionics bay/smoke in cockpit
and a few more besides. Also, on a Lufthansa 747-400, it really p*ssed me off that every other passenger seemed to be using the toilet seat cover dispenser as a garbage bin. I once slept in and was half an hour late for a morning shift, and got soundly berated by the WM while I was plugged in.... And the time I was asked to escort a group of "young ladies from British Airways" around the tower, they turned out to be a captain's 11-year old daughter and her school chums rather than the trolley dollies I was hoping for.