Can you find a number that lies one third of the distance between 1/3 and 2/3?

Take one out and scratch my head, I am now black but once was red. What am I?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

You can see three almost identical images below. Can you spot the odd one out from them?

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?

A Shopkeeper sold a few chickens to four different customers on a particular day. It was such that each customer purchased half of the remaining chickens and half the chicken more.

Can you find out how many chicken were sold by the shopkeeper on that day if we tell you that the fourth customer bought a single chicken ?

Which is heavier: a ton of bricks or a ton of feathers?

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?

What month of the year has 28 days?

What am I?