What does below Rebus say?

XLR8

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

When is the top of a mountain similar to a savings account?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

Why do we preferably have round manhole covers and not square ones?

You have to fill the below given grid in a manner that every row and column contains the digits 1 to 6. Also, make sure that the squares that are connected with each other must contains the same digit.

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

A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

I am a word that begins with the letter “i.” If you add the letter “a” to me, I become a new word with a different meaning, but that sounds exactly the same. What word am I?