Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

How can you take 2 from 5 and leave 4?

Seven Robbers robbed a bank and hide the coins in a lonely place.
They decide to divide the money equally the next morning. Two greedy robbers decided to cheat the others and reach the place at night. They equally divided the coins between them, one coin left. So they called another robber and then they decided to divide equally among the three. Sadly again one coin left. The same thing happened to the 4th 5th and the 6th robber.
However, when the 7th robber reached in the morning, they can divide the coins equally.

How many coins were there in total?

I make two people out of one. What am I?

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

Fate has decided that you will only be pleased to meet me when you need me

Maybe that is why, when I am working, I start working

However annoying I may be to the regulars, the little ones are always inspired

I will always be waiting if you try to reach me

How many of you can guess my name, let me see

Before Mount Everest was discovered, what was the highest mountain in the world?

What is the riddle which can be asked all day with a different correct answer each time.

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