Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

During an experiment, a guy throws a bouncy ball from a 100 feet tall building. The ball has a specific characteristic. Every time it hits the ground, it bounces up halfway.

How many bounces do you think the ball will make before it comes to a stop ?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

What makes this number unique: 8,549,176,320?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

What has many keys but can’t open a single lock?

Find the next number in the series below

21 32 54 87 131 ?

Take number 1000 and then add 20 to it.
Now add 1000 one more time.
Now add 30.
Now add 1000 one more time.
Now add 40.
Now add 1000 one more time.
Now add 10.

What is the total?

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?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain