Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.

What can jump higher than a building?

On my way to St. Ives I saw a man with 7 wives. Each wife had 7 sacks. Each sack had 7 cats. Each cat had 7 kittens. Kittens, cats, sacks, wives. How many were going to St. Ives?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

How many sides does a circle have?

By using 'because' continuously three times, can you make an English statement ?

Count the number of triangles in the given picture.

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Which part of London exists in France as well ?