Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

A woman named Maria was at the funeral of her mother. She met a nice young man that she had never seen before and after the service, they spent a bit of time together. Then she got busy and didn’t get his name or phone number before he left. She tried to find him, but no one knew who he was or how to contact him. A few weeks later, Maria’s older sister dies and the police suspect murder. Who killed the sister?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

There was a blind man. He had four socks in his drawer either black or white. He opened it and took out two socks. Now the probability that it was a pair of white socks is 1/2.

Can you find out the probability that he had taken out a pair of black socks ?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

Find the next number in the series below

21 32 54 87 131 ?

People make me, save me, change me, raise me. What am I?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

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