When can we add 2 to 11 and get 1 as the correct answer?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

It has five wheels, though often think four, You cannot use it without that one more, You can put things in it, you can strap things on top, You can't find it in the market, but you can still go shop. What is it?

Can you count the number of triangles in the given picture?

Be active and find the killer in the picture Riddle below.

Can you spot what's wrong with the following sentence?

PETER WAS ANGRY AT
HIMSELF BECAUSE HE
ACCIDENTALLY LEFT THE
THE KEYS TO HIS CAR
AT HIS FRIEND'S HOUSE.

Can you identify the hidden rebus in the image below?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

Replace the question mark with the correct number in the below-given picture?

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?