Related Clues:

• Jefferson's bill
• Double, for one
• Number of talking animals in the Bible
• Only even prime
• Turtledove tally
• A couple
• Tango need
• With 71-Across, heavy, as a truck
• Number of zodiac signs
• Midday
• Midnight
• Noah's per-species limit
• Solid-colored pool ball
• With 51-Across, a fair hand
• Date minimum