What is wrong in the below Picture?

Can you count the number of blocks in the picture below?

'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

Can you replace the question mark with the correct number in the below table sequence?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

What goes up but never comes down?

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?

A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside. The man said, "Oh! I am really sorry, I thought this was my room." He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man. What made her suspicious of that man? He might have been genuinely mistaken.

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

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