There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

Spot the cat in the picture below

Can you solve below mathematical equation?

2^1234 - 2^1233

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

On my way to St. Ives I saw a man with 7 wives. Each wife had 7 sacks. Each sack had 7 cats. Each cat had 7 kittens. Kittens, cats, sacks, wives. How many were going to St. Ives?

John gave half of the apples he had plus one more to Jacob. He gave half of the remaining ones plus one more to James. Now, John was left with just one apple.

Can you find out how many did he have in the beginning?

15 caves are arranged in a circle at the temple of doom. One of these caves has the treasure of gems and wealth. Each day the treasure keepers can move the treasure to an adjacent cave or can keep it in the same cave. Every day two treasure seekers visit the place and have enough time to enter any two caves of their choice.

How do the treasure seekers ensure that they find the treasure in the minimum number of possible days?

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

What is the next number in this matchsticks series riddle?

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