I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

What does below Rebus say?

XLR8

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?

Before reading ahead, you must know the fact that only one of the people here is telling the truth.

A says that B is lying.
B says that C is lying.
C says both A and B are lying.

Can you find out who is speaking the truth?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

Can you solve below mathematical equation?

2^1234 - 2^1233

There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?

I am not a bull but I have horns.
I am not an ass but I have a pack saddle.
Wherever I go, I leave silver behind me.

Who am I?