किस भारतीय राज्य में छोटे और बड़े समुद्री बंदरगाहों को मिलाकर सर्वाधिक संख्या है?

Name the famous navigable canal constructed by the British in India running parallel to the Coromandel Coast.

Which of the following cities are connected by the Trans-Siberian Railway?

Among the following continents, where is the highest road density found?