The similarities in the poem "Trains" by Humayun Kabir are as follows:
1. Size and Power: Both trains and elephants are large and powerful. The train is a massive machine, while the elephant is the largest land animal. Both are capable of exerting great force and moving heavy loads.
2. Loud Noises: Trains and elephants both make loud, distinctive noises. Trains produce a loud whistle and the rumbling of its wheels on the tracks, whereas elephants produce trumpeting sounds and other vocalizations.
3. Trunk: The front part of the train resembles an elephant's trunk. When a train enters the junction and blows its whistle, its funnel-shaped smokestack resembles an elephant's trunk.
4. Strength: Both trains and elephants are strong and sturdy. Trains are able to pull heavy loads and travel long distances, while elephants possess immense physical strength and are often used for carrying or moving heavy objects.
5. Purpose: Trains and elephants both serve a purpose in society. Trains transport people and goods, while elephants are used for transportation, logging, and other tasks.
6. Speed: Trains and elephants can move quickly, although trains are generally faster than elephants. Trains can travel at high speeds, while elephants can run quite fast for short distances.
7. Intelligence: Both trains and elephants display a degree of intelligence and responsiveness to their surroundings. Trains are guided by engineers and respond to signals, while elephants are known for their intelligence and problem-solving abilities.