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

Solve the mathematical equation in the picture below.

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

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

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

Can you find the six hidden animals in the picture below?

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?

I always drive my customer away.

Who am I?

A rain drop fell from one leaf to another leaf and lost 1/4th of its volume. It then fell to another leaf and lost 1/5th of the volume. It again fell on another leaf and lost 1/5th of the volume.



This process kept repeating till it fell on the last leaf losing 1/75th of its volume.



Can you calculate the total percentage of loss from the initial volume when the drop has fallen to the last leaf accurate up to two decimal places?