At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

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

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 ?

A Club organizes a Running Race, and John, Jacob, Minda, and Tony participated.

The results are as follows

John beats Jacob
Minda beats Toni
Toni beats John

Who came first in the race?

Remove two matchsticks to make the below equation correct.

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

Find out which of the given views in the picture is accurately the top view of the given pyramid.

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?