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.

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

Which wheel of car does not rotate when you turn your car right?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

By what process could you make a 'Tea-Table' into food?

A man was found murdered on Sunday morning. His wife immediately called the police. The police questioned the wife and staff and got these alibis: The Wife said she was sleeping. The Cook was cooking breakfast. The Gardener was picking vegetables. The Maid was getting the mail. The Butler was cleaning the closet. The police instantly arrested the murderer. Who did it and how did they know?

A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)

Solve the following series:
AZ, GT, MN, __, YB