If six children and two dogs were under an umbrella, how come none of them got wet?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

What does this rebus puzzle means ?

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

A non-stop marathon is the shared favourite sport of three brothers.

*The oldest one is fat and short and trudges slowly on.
*The middle brother's tall and slim and keeps a steady pace.
*The youngest runs just like the wind, speeding through the race.

"He is young in years, we let him run!" the other two brothers explained, "'because though he is surely number one, he is second, in a way." Why is it?

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

What does below chemistry rebus means?

Solve the following series:
AZ, GT, MN, __, YB