who is silent in the parliament?

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?

You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

12345 a famous South Indian actor
567 is a path in jumbled form
8 & 10 are same letters
9 is one among the first six alphabets.
WHO AM I?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

A father's child, a mother's child, yet no one's son.

Who am I?

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