The doctor prescribed you to take one pill from the bottle every half an hour. The bottle is now left with only three pills.

How long do you think you have before you run out of pills?

During which month do people sleep the least?

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

Can you tell a 3D object that has just two surfaces?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might; physically joining with a single bite. What am I?

If a zookeeper had 100 pairs of animals in her zoo, and two pairs of babies are born for each one of the original animals, then (sadly) 23 animals don’t survive, how many animals do you have left in total?

Replace the question mark with the correct number in the below-given picture?

The more of this there is, the less you see. What is it?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?