John is found dead in his office at his desk. The police have narrowed the suspects down to three people: Mrs. Jacob, John’s wife Hena and his business partner Jason . All three visited John on the day of his murder, but all three provide the police with stories of explanation as to the reason for their visit.
Police found John with his wrist watch still on his right arm, a torn up picture of his wife laying on the floor beside the trash can, and an ink pen in his right hand. On the desk, the police found a name plate, a telephone that was off the hook, and a personal calendar turned to the July 5th page with 7B91011 written on it. After examining this evidence, the police knew their suspect. Who was it ?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

A mathematician couple was having a Frappuccino in Starbucks sitting opposite to each other. Suddenly the guy noticed the text written on the paper in front of them and exclaimed that it was wrong. The girl denied it and said it is appropriate. Both are correct. What is written on the paper?

What is the riddle which can be asked all day with a different correct answer each time.

How many times do a clock's hands overlap in a day ?

First, think of the colour of clouds. Next think the colour of snow. Last, think of the colour of the moon. Now, what do cows drink?

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100