Two men play a dice game involving roll of two standard dice. Man X says that a 12 will be rolled first. Man Y says that two consecutive 7s will be rolled first. The men keep rolling until one of them wins.

What is the probability that X will win ?

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 The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

What is the centre of gravity?

Prove that the below maths equation is true.

8 + 8 = 91

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's a single-digit number with no value?

Suppose you are sitting in an interview and the interviewee asks you an aptitude question.

You have three buckets with a capacity of 4 litres, 8 litres and 10 litres and you have a large tank of water. Now you have to measure 3 litres of water precisely using those buckets. How will you do it?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?