How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

Ten coins have been arranged as you can see in the given picture. In this arrangement, a triangle is formed pointing upwards. You have to invert the position of the triangle and make it point downwards while changing the position of 3 coins only. Can you do it?

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

Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396.

What is the sum of the three digits?

Which famous Hollywood movie name is hidden in the below rebus?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

Look at the picture and find out which square is not linked with any of the other squares.

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?