What is both possible and impossible at the same time?

Be active and find the killer in the picture Riddle below.

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

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?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

On a windy rainy night , I was driving in my car.
When i reach the bus stand , i see three people waiting for the bus.

1. An old lady who needs an immediate medical attention
2. My Best Friend
3. Girl whom i love from childhood

My car is a two seat, so can you tell me , what i have done in this situation ?

Four men were in a boat on the lake. The boat turns over, and all four men sink to the bottom of the lake, yet not a single man got wet! Why?

Keyboard words are not in alphabetical order, Why?

A man looks at a painting in a museum and says, “Brothers and sisters I have none, but that man’s father is my father’s son.” Who is in the painting?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?