WHAT DID THE MATH BOOK SAY TO THE PSYCHOLOGIST RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

They all have phones. Did you answer this riddle correctly?
YES  NO  

He worked it out with a pencil Did you answer this riddle correctly?
YES  NO  

In a cone Did you answer this riddle correctly?
YES  NO  

Go to the library Did you answer this riddle correctly?
YES  NO  

The library Did you answer this riddle correctly?
YES  NO  

Gee, I'm a tree! Did you answer this riddle correctly?
YES  NO  

Pi! Did you answer this riddle correctly?
YES  NO  

He wanted to go undercover. Did you answer this riddle correctly?
YES  NO  

The required integer is -1.

For an example, let us subtract 7 from -1.

-1 - 7 = -8

Now the successor of 7 is 8 and (-8) is exactly divisible by 8.

You can try that for any number and it will hold true. Did you answer this riddle correctly?
YES  NO  

One! After that it's not empty. Did you answer this riddle correctly?
YES  NO  

One with a hoppy ending! Did you answer this riddle correctly?
YES  NO  

Hooo-dunnits! Did you answer this riddle correctly?
YES  NO  

Acute angel Did you answer this riddle correctly?
YES  NO  

A library Did you answer this riddle correctly?
YES  NO  

A calcu-later Did you answer this riddle correctly?
YES  NO