Why is it very easy to weigh a fish?

The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?

John was piloting a plane behind a car but was never able to overtake it. Why?

A train full of passengers goes through a tunnel. When the train comes out from the other end, there is no single person on the train.

How did it happen?

Find the number of squares in the below picture

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

Do You See It?

Check out the number list below and find what number comes next in the sequence.

111 , 113 , 117 , 119 , 123 , 137 , ?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

How many sides does a circle have?