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?

I am an odd number. Take away a letter and I become even. What number am I?

A Scientist was fifty years old in the year 2000 but he was forty years old in the year 2010. How can this be possible?

PS: It has a logical answer.

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph.

Which of the trains will be farther from point A when they meet ?

The more you take me, the more you leave me behind.
Who Am I?

What begins with T, ends with T, and has T in it?