In cricket what is a pair?

Answer 1

if a batsman gets out on the first ball in the first innings of a test match, then when he will face the first ball of second innings, he will be consider as on a king pair, as same as after two consecutive wickets the bowler is considered to be on a hattrick for the third ball, when he gets the third consecutive wicket he is considered to achieve the hattrick similarly when a batsmen gets out on the first ball of second innings as in the first innings he will be considered as he has achieved the king pair.

Answer 2

A pair is scoring zero in both innings of a two innings game.