You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

Can you find out which number multiplied by itself will give the output as 12345678987654321?

Which alphabet letter is a question?

If 1+9+8=1, what is 2+8+9?

What is the next number in this series?

4,12,84,3612....

Buy me, smell me or deliver me, I do not change.

Who am I?

To tease, King Akbar told his most clever advisor Birbal to give his daughter one thing that she can eat when hungry, drink if she feels thirsty and can burn if she feels cold. King Akbar was shocked when Birbal gave Akbar's daughter one such thing that satisfies all of the above.

What did Birbal give to Akbar's daughter?

Can you find the least possible number such that

If the number is divided by 3, it gives the remainder of 1;
If the number is divided by 4, it gives the remainder of 2;
If the number is divided by 5, it gives the remainder of 3;
If the number is divided by 6, it gives the remainder of 4.

By what process could you make a 'Tea-Table' into food?

What kind of band never plays music?