What is the next shape from answers A, B, C, and D figure?

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

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?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

Solve the mathematical equation in the picture below.

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Can you move 2 matchsticks to form four equal sized squares.