Can you make a six-letter word using the letters N, A and B ?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

All Marigolds are flowers.
Few Flowers are used to make colors.
Therefore, some Marigold are used to make colors.

True Or False?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

Find the missing letter in the last circle logically in the given below picture.

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.

What word begins and ends with an E, but has only one letter?

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

Which letter of the alphabet has the most water?

I always drive my customer away.

Who am I?