Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

I have feet, but no legs. Which animal Am I?

What is the Surname of Barbie Doll?

I am a type of word that is spelt incorrectly or used differently, on purpose for humour. What am I?
Hint 1: You can find me in a joke.
Hint 2: I am a play on words.

If 2 workers can complete painting 2 walls in exactly 2 hours.

How many workers would be needed to paint 18 walls in 6 hours?

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

I am white when I am dirty, and black when I am clean. What am I?

what one word does the below rebus identifies?

What has no start, end, or centre?