What month of the year has 28 days?

What number should come in place of the question mark below?

What does below chemistry rebus means?

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

Can you count the number of lines in the below picture?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

Can you find out the remainder when 3^300 is divided by 5?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

Can you count the number of squares in the given picture?