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

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

10+10 and 11+11 can give you the same answer.

Explain how?

Prove that twice of ten is the same as twice of eleven.

After teaching his class all about Roman numerals (X = 10, IX=9 and so on) the teacher asked his class to draw a single continuous line and turn IX into 6. The teacher's only stipulation was that the pen could not be lifted from the paper until the line was complete.

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

In a town, there are over 100 flats.
Flat-1 is named first flat.
Flat-2 is named second flat.
Flat-3 is named third flat.

A visitors 'Victor' decides to walk through all the flats, he finds all the flats except flat-62.
Victor later founds that the local of the town have given it another name.

What is the name of the Flat?

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

A person is found murdered in his Chamber. When the crime scene is investigated, the Investigator find out that there is a calendar on which the victim has written a few numbers with his blood. The numbers are 4, 11, 11 and 4.

There are four suspects in the murder, John, Jacob, Anna and Lee. Can you find out who is the murderer?