Can you find out the total number of triangles in the given figure?

What has no start, end, or centre?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

Katniss and Peeta are liars. They both lie on some specific days.

Katniss lies on Fridays, Saturdays and Sundays. She speaks the truth on all other days.

Peeta lies on Tuesdays, Wednesdays and Thursdays. He speaks the truth on all other days.

Can you tell that one day of the week when both of them will say "Tomorrow, I will lie."?

Solve the mathematical equation in the picture below.

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

You walk into a creepy house by yourself. There is no electricity, plumbing, or ventilation. Inside you notice 3 doors with numbers on them. Once you open the doors you will die a particular way. Door No.1 You’ll be eaten by a lion who is hungry. Door No.2 You’ll be stabbed to death. Door No.3 There is an electric chair waiting for you. Which door do you pick?

In the image below, can you find the value of an angle(y)

Different lights make me strange by changing me into different sizes. What am I?