I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Can you replace the question mark with the correct number in the below table sequence?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?

During a secret mission, an agent gave the following code to the higher authorities
AIM DUE OAT TIE MOD

However, the information is in one word only and the rest are fake. To assist the authorities in understanding better, he also sent them a clue, If I tell you any one character of the code, you can easily find out the number of vowels in the codeword.

Can you find out the code word?

A man dies of old age on his 25 birthday. How is this possible?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?