The signs indicate the following:
- The first sign, with a person and luggage on an escalator crossed out, means 'No escalators' or 'Do not use escalators with luggage'.
- The second sign, with a burger and a drink crossed out, means 'No food or drinks allowed'.
- The third sign, showing a person holding a child on their lap in a seat, likely indicates a 'priority seating' area for parents with children or a 'family seating' area.
The questions are not provided in the image, so only the interpretation of the signs is given.