What is the chemical name of Vitamin D

Statements: No data is a number.

Some numbers are not letters.

Only letters are consonants.

Statement:

At-least some chairs are tables.

A few tables are fans.

Only a few windows are tables.

All tables are doors.

Statement: 

At-least some E are F.

A few F are G.

Only a few H are F.

All F are Q.

Conclusion:

Statements:

All mangos are apples

Only a few apples are bananas

Some bananas are not guavas

Only a few guavas are orange

Statements: No bike is a car.

                            All car are cycle.

Statements:All circles are rectangles.

No rectangle is a square.

Conclusions:I. No square is a rectangle.

Statement 

Only Girls are boy

Some girls are men

No men is women

Conclusion

I. Some boy is women