शेखर एक जीवनी' के लेखक का नाम बताइए

Statements : Some sticks are canes

All canes are rods.

All rods are pipes.

Conclusions :

I. Some sticks are rods.

Statements: Some dogs are cats.

No camel is a rat.

All cats are camels.

Conclusions: I. All dogs may be camels.

Statements:           All eleven are twelve.

Some twelve are thirteen. 

All thirteen are fourteen

Statements: Some cubs are puppies.

No puppy is a calf.

All kittens are puppies.

Conclusions: I. At least some cubs are calves.

Statements:

Only a few Planet is Mars.

No Mars is Pluto.

Only Pluto is Saturn.

Conclusions:

Statements:

All Curtain are Wall

Only a few Rod are Curtain

No Sticker is Rod

Conclusions:

I. No Sticker is Wall

II. All Sticker are Wall is a possibility

Statements:All hotels are buses.

Some buses are cars.

All cars are trams.

Some trams are clouds.

Statements:

Only a few Orange are Apple

Some Orange are not Mango

Some Mango are Pear

Conclusions:

At least some singers are dancers. Some dancers are not lyricist.

Statements: All rollers are coasters.

Some swings are rollers.

All bridges are swings.