Name a key which is hardest to turn.

I’m tall when I’m young, and I’m short when I’m old. What am I?

A man is trapped in a room. The room has only two possible exits doors. Through the first door there is a room constructed from magnifying glass. The blazing hot sun instantly fries anything or anyone that enters. Through the second door there is a fire-breathing dragon. How does the man escape?

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

I am an odd number. Take away a letter and I become even. What number am I?

What has to be broken before you can use it?

Can you identify if it's a murder or a suicide ?

Spot 5 differences in two Christmas tree below:

Jenifer and Jesica are having a conversation.

Jenifer: I am definitely not over 30.
Jesica: I am 28 and you are surely 5 years older to me at least.
Jenifer: No, you are at least 29.

You are told that both of them are lying throughout in the conversation. Can you find their respective ages?

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