How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

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?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

Find out the missing number in the picture attached:

A sundial has the fewest moving parts of any timepiece. Which has the most?

A generous owner of a company decided to give a bonus of $45 to every man and $60 to every woman on his birthday. But only one-ninth of the men and one-twelfth of the women were present to take the bonus.

Can you calculate the amount of money the owner spent if there were 3552 employees?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?