Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

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

If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?

John is pretty weird. He likes toffees but hates chocolates. He loves books but never reads. He likes to build his troops in an online game but does not proceed with the war. He likes to go swimming but is afraid of water.

Seeking this behaviour, can you tell whether he likes balloons and parties?

In the Mexico City area, there are two Houses H1 and H2. Both H1 and H2 have two children each.
In House H1, The boy plays for Mexico Youth academy and the other child plays baseball.
In House H2, The boy Plays soccer for his school in Mexico and they recently have a newborn.

Can you prove that the probability of House-H1 having a girl child is more than that of House-H2?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

I don't get anymore wetter, no matter how much rain falls on me.

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?

Where do you go to learn how to make ice cream?