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

Which alphabet letter is a question?

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

Find the smallest sentence with all the English alphabet.

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?

The Puzzle: Here is a famous prize problem that Sam Loyd issued in 1882, offering $1000 as a prize for the best answer showing how to arrange the seven figures and the eight 'dots' .4.5.6.7.8.9.0. which would add up to 82

A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?

What do you see in the given picture?

Can you find out the missing number in the grid?