He has now scored as many as the entire Toon team in the current campaign.
Shelvey has been hugely influential in recent weeks as Newcastle have put together a four-game unbeaten run - indeed, Manchester City's double over them represents their only reverses in their last 10 - to boost their survival hopes.
Mane's heavy touch denied the winger a sight of goal in the early minutes, while Salah sent a volley into the side-netting, but both attackers would find the target later.
Deontay Wilder Ready For Challenges Of Luis Ortiz
If a fighter with some pop has the right backing and is brought along right, there's a fortune to be made by all parties involved. Actually, if Ortiz loses to Wilder he could make a lot of money as an opponent down the road fighting up and coming prospects.
Florian Lejeune's ambitious long-range free-kick posed no problems for Loris Karius, Martin Dubravka showing sharp reflexes to keep out a Dejan Lovren header at the other end. "Liverpool is a great team and they are scoring a lot of goals".
But any frustration was eased five minutes before the break when Salah made the most of his first clear-cut chance.
The Egypt international's 32nd goal of the campaign - the same number the Magpies have managed in all competitions this season - was the 26th competitive club match he has scored in, eclipsing the likes of Paris St Germain's Edinson Cavani (24) and Barcelona's Lionel Messi (20) in the big five leagues.
Swansea Manager Carlos Carvalhal Pleaded As His Players Create FA Cup History
Ayew finished off a close-range attempt in the 55th minute, after Tom Carroll was unlucky not to score just prior when he struck both posts with a venomous strike from long distance.
"Alex Oxlade-Chamberlain is still a young boy, he can be much more consistent and much more of a threat". Roberto Firmino drives forward and slips the ball inside for Mane, who slots into the corner.
Leicester are still winless in their last five league games, dating to January 20.
Newcastle have not won at Anfield since 1994 and they were largely toothless here, Benitez's side slipping closer to the relegation zone after a tame defeat, but Liverpool continue to thrive following the sale of Philippe Coutinho to Barcelona.
"The best team we had at this time was the team that finished second in the league with 86 points".
North Korea is helping Syria build chemical weapons: UN experts
Experts say that North Korea has long offered military supplies and weapons know-how around the world in exchange for cash. Pyongyang's missile experts have been identified at Syrian weapon-manufacturing premises, media reports said.
In their prior meeting this season, Liverpool and Newcastle settled for a 1-1 draw at St. James' Park.