Based on the clue 'by each head in a country', what is the answer?

Based on the clue 'by design from a tupolev tu 26 backfire or petlyak...', what is the answer? Based on the clue 'by distance from the sun 1 mercury 2 venus 3 earth...', what is the answer? Based on the clue 'by dr seuss the hats of bartholomew cubbins', what is the answer? Based on the clue 'by dropping 2 letters in osiris name you get this ...', what is the answer? What is associated with: by early 1895 at his estate near bologna he could ring a bell a few yards away via radio waves? What is associated with: by early 2006 new orleans had been overtaken in population by this nearby capital city? Based on the clue 'by electoral votes 1 california 2 texas 3 new york...', what is the answer? Based on the clue 'by em forster the signora had no business to do it...', what is the answer?