It is always ahead of me yet I can never see it. What is it?

What 5-letter word typed in all capital letters can be read the same upside down?

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

Manish and Manoj play 5 games of chess.
Both Manish and Manoj win the exact same number of games. There is no tie at all.

How?

Can you solve the photo plexer logic ?

We have arranged an array of numbers below. What you have to do is use any kind of mathematical symbol you know excluding any symbol that contains a number like cube root. You can use any amount of symbols but you have to come up with a valid equation for all of them.

0 0 0 = 6
1 1 1 = 6
2 + 2 + 2 = 6
3 3 3 = 6
4 4 4 = 6
5 5 5 = 6
6 6 6 = 6
7 7 7 = 6
8 8 8 = 6
9 9 9 = 6

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

How can you take 2 from 5 and leave 4?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C