The centre of the third figure is empty. What digit should fit inside?

John can fit six large chocolate boxes or nine small chocolate boxes into a carton. How many cartons will he require to put sixty-six chocolate boxes into?

You know three triplets: Frank John and Wayne (need to return your money). Frank always tells the truth while John and Wayne always lie. You meet one of them on the road and can ask him a three-word question.
Which question, will you ask?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

A man is approaching a broad and barren land. He has a package with him. If somehow, he is unable to open the package before reaching the land, he will die.

Can you guess what is present in the package?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Which letter of the alphabet has the most water?

What four weights can be used to balance from 1 to 30 pounds?

Different lights make me strange by changing me into different sizes. What am I?

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?