Can you solve the photo plexer logic ?

Solve the mathematical equation in the picture below.

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

There is a number which when you multiply by 3 and subtract 2 from the result, then the resulting number is the reverse of the actual number.

What is the smallest number that stands true on the statement?

I’m tall when I’m young, and I’m short when I’m old. What am I?

It can't be seen, can't be felt, can't be heard, and can't be smelt.
It lies behind stars and under hills, And empty holes it fills.
It comes first and follows after, Ends life, and kills laughter.
What is it?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

Solve the counting riddle by identifying the number of triangles in the given picture.

In a secret society, a buried chamber can be accessed only via a secret password. The password is seven characters long and comprises of just letters and numbers.

You find a code that can help you in cracking the password. The code says "You force heaven to be empty".

Can you deduce the password from that?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?