A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

A boy and his father are caught in a traffic accident, and the father dies. Immediately the boy is rushed to a hospital, suffering from injuries. But the attending surgeon at the hospital, upon seeing the boy, says 'I cannot operate. This boy is my son.' How is this situation explained?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

If a zookeeper had 100 pairs of animals in her zoo, and two pairs of babies are born for each one of the original animals, then (sadly) 23 animals don’t survive, how many animals do you have left in total?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

What goes through cities and fields, but never moves?

Spot 5 differences in two Christmas tree below:

Can you count the number of quadrilaterals in the picture below?