CREATE TABLE table_name_92 (weight VARCHAR2, shape VARCHAR2, size VARCHAR2)

What is the weight with the shape of scalloped, and that is a size of 20mm (across scallops)?
SELECT weight FROM table_name_92 WHERE shape = "scalloped" AND size = "20mm (across scallops)"
SELECT "weight" FROM "table_name_92" WHERE "20mm (across scallops)" = "size" AND "scalloped" = "shape"