In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters?

Why are televisions attracted to people?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

When we see 2 but call 10?

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

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

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 country can make you shiver?