Question: What episode featured entrepreneur Richard Ernest?
SQL: SELECT "First aired" FROM "2-12617978-15" WHERE "Entrepreneur(s)" = 'Richard Ernest';

Question: What Investing Dragons had a request of £100,000?
SQL: SELECT "Investing Dragon(s)" FROM "2-12617978-15" WHERE "Money requested (£)" = '100,000';

Question: What Entrepreneurs requested £60,000?
SQL: SELECT "Entrepreneur(s)" FROM "2-12617978-15" WHERE "Money requested (£)" = '60,000';

Question: How much was requested from Investing Dragon Peter Jones request in Episode 2?
SQL: SELECT "Money requested (£)" FROM "2-12617978-15" WHERE "Investing Dragon(s)" = 'Peter Jones' AND "Episode" = 'Episode 2';