Let's evaluate each statement to find the correct answers:
- A pigeon is a type of fish. - False (Pigeons are birds, not fish.)
- A horse has four hoofs. - True (Horses do have four hooves.)
- A cat eats with a beak. - False (Cats have mouths and teeth, not beaks.)
- Eagles have wings. - True (Eagles are birds and have wings.)
- Dogs breathe through gills. - False (Dogs breathe through lungs, not gills.)
- Rabbits shed their scales every year. - False (Rabbits do not have scales; they have fur.)
- Parrots can learn to talk. - True (Parrots are known for their ability to mimic sounds, including human speech.)
- Fish have fur to keep them warm. - False (Fish have scales, not fur.)
- Gerbils are common house pets: - True (Gerbils are indeed common household pets.)
- Tortoises can fly. - False (Tortoises cannot fly.)
Now, let's compile the correct answers:
- 1: False
- 2: True
- 3: False
- 4: True
- 5: False
- 6: False
- 7: True
- 8: False
- 9: True
- 10: False
The correct answers are False, True, False, True, False, False, True, False, True, False.
Now, if we take the first letter of each correct answer:
- False (F)
- True (T)
- False (F)
- True (T)
- False (F)
- False (F)
- True (T)
- False (F)
- True (T)
- False (F)
The spelling of letters forms: FTFTFTFTFT, which doesn't seem to provide us with any clear indication of an idiom.
It seems the way to deduce the spelling of the idiom isn't straightforward. However, the idiom meaning "exaggerated" is "over the top".
You might want to check if there are any additional clues or instructions. If there's a specific method for deriving the letters needed (e.g., counting the number of Ts or Fs), please clarify so that we can reach the intended idiom!