I never was there, I am always to be.
You have never ever seen me, not ever you will.
Yet I am the confidence of everyone.

Who Am I?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

The following "Brain Bat" means Slow Down.
S
L
O
W

Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

what's the probability of getting a king or a queen from a pack of 52 cards?

Replace the question mark with the correct number below.