avoado> var cursor = db.examples.limit(3);

avoado> for (var i = 0;  cursor.hasNext();  ++i) { print(i + ": " + toJson(cursor.next())); }
0: { "age" : 2, "name" : "Name2", "first_name" : "Yes", "_id" : "9496015:11126645" }
1: { "age" : 8, "name" : "Name8", "first_name" : "Yes", "_id" : "9496015:11519861" }
2: { "age" : 6, "name" : "Name6", "first_name" : "Yes", "_id" : "9496015:11388789" }