Eight of us go fourth, not back, to protect our king from an attack. What are we?

What Adam and Eve do not have but the rest of the people have?

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?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

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?

Find the value of "?" in the ball picture Riddle below:

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

What word begins and ends with an E, but has only one letter?

A professor thinks of two consecutive numbers between 1 and 10.
'A' knows the 1st number and 'B' knows the second number

A: I do not know your number.
B: Nor do I know your number.
A: Now I know.

What are the four solutions for this?

What is the difference between a jeweller and a jailer?