Create a number using only the digits 4,4,3,3,2,2,1 and 1. So i can only be eight digits. You have to make sure the ones are separated by one digit, the twos are separated by two digits the threes are separated with three digits and the fours are separated by four digits

What is the next number in this series?

4,12,84,3612....

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

What demands an answer, but asks no questions

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

In an office's desk, you find a unique method that shows the current day of the month. Two numbered cubes are used to depict the current date.

Can you find out the numbers on both the cubes so that each date can be mentioned using them?

Please note that you have to use both the cubes to display any date. Thus the 1st day must be represented by 01 and so on.

Can you find the mistake in the below statement?

The following alphametic has only one solution. Can you find it?
ENLIST + SILENT + LISTEN = ANAGRAM

PS: You may start the number from 0.

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

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?