Question: what is the name when the lane is less than 4 and mark is 52.64?
SQL: SELECT "Name" FROM "2-16196238-2" WHERE "Lane" < 4.0 AND "Mark" = '52.64';

Question: what is the number of times that the heat is 3 and the name is cxhristy ekpukhon ihunaegbo?
SQL: SELECT COUNT("Lane") FROM "2-16196238-2" WHERE "Heat" = 3.0 AND "Name" = 'cxhristy ekpukhon ihunaegbo';