1. **Is the object similar to a 1x1 elongated Lego brick?**
   - **Answer:** Yes
   - **Reasoning:** The object has a rectangular base with a cylindrical extrusion on top, resembling the basic shape and structure of a 1x1 elongated Lego brick, which typically features a rectangular base with a single stud on top.

2. **Is the extrusion length of the square almost twice the length of the square's side?**
   - **Answer:** Unclear
   - **Reasoning:** From the images provided, it is difficult to accurately measure the proportions of the extrusion relative to the square's side. The perspective and angle of the images do not allow for precise measurement.

3. **Is the object hollowed out, keeping only the top of the extruded square?**
   - **Answer:** No
   - **Reasoning:** The images show a solid object with no visible hollow sections. The object appears to be fully solid from all visible angles.

4. **Is there a circle extruded on top of the cube?**
   - **Answer:** Yes
   - **Reasoning:** The images clearly show a cylindrical (circle-shaped in top view) extrusion on the top of the rectangular base, which is consistent with the description of a circle extruded on top.

5. **Is the height of the extruded circle about 1/7th the height of the square's extrusion?**
   - **Answer:** Unclear
   - **Reasoning:** Without specific measurements or scale references in the images, it is difficult to determine the exact proportion of the height of the cylindrical extrusion relative to the height of the rectangular extrusion. The images do not provide enough detail to accurately assess this ratio.