Spot what is wrong here in below Picture?

If 2 workers can complete painting 2 walls in exactly 2 hours.

How many workers would be needed to paint 18 walls in 6 hours?

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?

Make a sentence consisting of three words that have the whole alphabet.

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

What is the word or phrase below?
R | E | A | D

Two Twins Jack and Jill were standing back to back and suddenly they started running in opposite direction for 4 kilometres and then turn to left and run for another 3 kilometres.

what is the distance between the Baggio twins when they stop ?

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?

Our product and our sum always give the same answer. Who are we?

Complete the table series riddle by finding the number that can replace "??".