2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

What does this rebus puzzle means ?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

Can you find the dog hidden in a group of pandas?

What does an Island and the letter T have in common?

What is the next number in this matchsticks series riddle?

If we tie a Sheep to one peg, a circled grass is been eaten by the Sheep. If we tie the Sheep to two pegs with a circle on its neck, then an eclipse is eaten out of the grass by the Sheep. If we want an eclipse then we put two pegs and then put a rope in between them and the other end of the rope is tied up on the Sheep's neck.

How should we tie the peg and the Sheep so that a square is eaten out from the garden grass? We only have one Sheep rope and the peg and the rings.

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?