When 99 is considered higher than 100?

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

In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

Replace the question mark in the picture below.

Solve the equation in the image by looking at the pattern closely.

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?

I have Rs.50 and I spend it in the way as below.

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

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?