Christina is practising her dance steps along with her friends. In a particular sequence, all of them form a row. At that point, Niharika is standing in the 4th position from either end of the row.
Can you find out how many girls are practising together?

What is the next number in the series?

15 29 56 108 208 ?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

Why did the Girl throw the butter out of the window?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

How many words can a pen with half refill write?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

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

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

How many times do a clock's hands overlap in a day ?