In each question below, some statements are given followed by two conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusion logically follows from the given statements, disregarding commonly known facts. Give answer-

Statements:
Only a few Tube is Well.
All Well is Pipe.
Some Well is not Tank.
Conclusions:
I. All Tube being Tank is a possibility.
II. All Pipe being Tank is a possibility.

The correct answer is If only conclusion I follows.

Step 1: Understand and break down the given statements
1. Only a few Tube is Well: This statement implies two conditions simultaneously:
- Some Tube are Well.
- Some Tube are NOT Well.
2. All Well is Pipe: The entire set of Well is inside Pipe.
3. Some Well is not Tank: There is at least some portion of Well that cannot overlap with Tank.

Step 2: Analyze Conclusion I
Conclusion I: All Tube being Tank is a possibility.
- The only restrictions given are between Tube and Well ("Only a few Tube is Well"), and between Well and Tank ("Some Well is not Tank").
- There is no direct negative relation or restriction between Tube and Tank.
- Even though some Well cannot be Tank, the portion of Tube that overlaps with Well can still potentially be Tank, or the entire set of Tube can be placed inside Tank without violating any statement.
- Therefore, Conclusion I is a valid possibility.

Step 3: Analyze Conclusion II
Conclusion II: All Pipe being Tank is a possibility.
- Statement 2 tells us that All Well is Pipe (Well is completely inside Pipe).
- Statement 3 tells us that Some Well is not Tank (at least a part of Well can never be Tank).
- If ALL Pipe were to become Tank, then automatically ALL Well would also become Tank, which directly contradicts Statement 3 ("Some Well is not Tank").
- Therefore, it is impossible for all Pipe to be Tank.
- Thus, Conclusion II does not follow.

Conclusion:
Only Conclusion I logically follows from the given statements.