Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

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

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?

What does this rebus means ?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

John has played 50 ODI's and his average is 50. How many runs should he score in his 51st ODI, so that his average score jumps to 51?