Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

Can you solve below mathematical equation?

2^1234 - 2^1233

Spot 5 differences in two Christmas tree below:

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

Three friends decide to distribute the soda cans they had among them. When all of them had drunk four cans each, the total number of cans that remained was equal to the cans each one of them had after they had divided the cans.

Can you calculate the total number of cans before distribution?

Why is it very easy to weigh a fish?

What has one letter and starts with an E?

Take away the whole and some still remain. What is it?

Out of four images which one is the odd one out?

A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?