How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

John leaves home and then he takes three right turns. John wants to return to home but he was scared of Jacob, who is wearing a mask.

What is John Situation ?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

There is a five-letter word which has 3 consonants(all are same) and 2 different vowels.
Also, something wrong is associated with the word.

Can you name it?

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

There were two grandmothers and their two granddaughters.
There were two husbands and their two wives.
There were two fathers and their two daughters.
There were two mothers and their two sons.
There were two maidens and their two mothers.
There were two sisters and their two brothers.
Yet there are only six, who are buried here,
All are born legitimate and relationships clear.
How can this happen?

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

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

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