"An effective way to evaluate the average's man strength is to look at familiar exercises that work multiple muscle groups. With this in mind, the average untrained man can squat 125 pounds, bench press 135 pounds and deadlift 155 pounds."

At least that's Wiki's answer

And Olympic Athletes

Snatch	216 kg (476 pounds)	Behdad Salimi	 Iran	16 August 2016	Olympic Games	Brazil Rio de Janeiro, Brazil	[13]
Clean & Jerk	263 kg (579 pounds)	Hossein Rezazadeh	 Iran	25 August 2004	Olympic Games	Greece Athens, Greece