What does does this rebus picture means ?

How many triangles are there on the puzzle below?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

Can you place three balls such that the equation shown in the picture holds true?

When a clock is observed, the hour hand is at a minute mark and the minutes hand is six minutes ahead of it.

When the clock is observed again after some time, the hour hand is precisely on a different minute mark and the minute hand is seven minutes ahead of it.

Can you calculate how much time has elapsed between the two observations?

Forwards I am heavy, backward I am not. What am I?

Can you find the 09 errors in the picture below?

What do you think with the below Picture ?

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?