If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

Can you circle exactly four of these numbers such that the total is twelve?

1 6 1
6 1 6
1 6 1
6 1 6

You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?

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

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

What has many teeth, but cannot bite?

Find the hidden tiger in the given optical illusion ?

Who are the happiest people in IPL match?

If eleven plus two equals one, what does nine plus five equal?

Can you find the key in the picture below?