What is the riddle which can be asked all day with a different correct answer each time.

If a boy blows 18 bubbles,
Then pops 6 eats 7 and then
He pops 5 and blows 1.
How many are left?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

What is the longest word in the dictionary?

How can you take 2 from 5 and leave 4?

There is a place where if I stand up straight, I will still be considered sideways.

Which letter of the alphabet has the most water?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

Move three sticks of the spiral below to form a square.

An evil man kidnapped someone and made them take one of two pills. One was harmless, but the other was poisonous. Whichever pill the victim took, the kidnapper took the other one. The victim took their pill with water and died. The kidnapper survived. How did the kidnapper get the harmless pill?