If eleven plus two equals one, what does nine plus five equal?

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

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

I am white when I am dirty, and black when I am clean. What am I?

There are two dice with empty faces in front of you and a marker. You can mark any number on each of the faces of the two dice, but you have to display all 31 days of the month using the two of them.

Which numbers will you mark on which dice so that you can easily depict all the dates of the month?

One evening there was a murder in the home of a married couple, their son and daughter. One of these four people murdered one of the others. One of the members of the family witnessed the crime.

The other one helped the murderer.

These are the things we know for sure:

1. The witness and the one who helped the murderer were not of the same sex.

2. The oldest person and the witness were not of the same sex.

3. The youngest person and the victim were not of the same sex.

4. The one who helped the murderer was older than the victim.

5. The father was the oldest member of the family.

6. The murderer was not the youngest member of the family.

Who was the murderer?

Which is the smallest number that you can write using all the vowels exactly once?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

What is always in front of you but can’t be seen?