I look at you, you look at me I raise my right, you raise your left. What am I?

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?

There is a unique number which when multiplied by any number from 1 to 6, we will get the new number that contains the same digits only.

Can you find that number?

By moving just one matchstick, you need to make the below statement true. Can you do it?

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

What is common among 11, 69, and 88?

Find out the missing number in the picture attached:

You bought me for dinner but never eat me. What am I?

What goes up but never comes down?

How many times can you subtract the number two from the number fifty?