Spot what is wrong here in below Picture?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

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?

What is the largest number you can write with just 3 digits?

Identify the 10 differences between the two given pictures.

I am lying and I always lie. Tell me whether I am lying or telling the truth.

I am sometimes honest
Sometimes dishonest
I can be sweet and also bitter
I can hurt you real bad and
also make u smile and blush ☺️
What am I?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

Peter wakes up daily to pick up his cycle and crosses the border between Spain and France daily with a bag on his shoulder. He is investigated daily by the officials but they don't find anything suspicious.

If we tell you that he is smuggling something what would it be?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?