CREATE TABLE table_79053 ("Name" TEXT, "Pos." TEXT, "Height" TEXT, "Weight" TEXT, "Date of Birth" TEXT, "Club" TEXT)

What is the weight of the player from club panionios g.c. and was born on 1975-05-21?
SELECT "Weight" FROM table_79053 WHERE "Club" = 'panionios g.c.' AND "Date of Birth" = '1975-05-21'
SELECT "Weight" FROM "table_79053" WHERE "Club" = 'panionios g.c.' AND "Date of Birth" = '1975-05-21'