When my father was 31 I was 8. Now he is twice as old as me. How old am I?

How many triangles are there on the puzzle below?

Which is the smallest number that you can write using all the vowels exactly once?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

In the following picture, E is going to slide the object down and as per the terrain and the physics, the round object is going to travel all the way till the end. Now, can you analyze who all people will die when it happens?

I can be cracked, made, told, and played. What am I?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?