They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

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

Can you count the number of children in the picture below

I can write cow in 13 letters.

Can You?

You are given with the following sum. Each of the letters can be decoded as a digit. If we tell you that D = 5, then can you solve it entirely?

DONALD
+GERALD
=ROBERT

To attend world science seminar, A famous chemist from Mexico visit
London. In the lab, the scientist was killed and his six assistants were under suspicion of killing the chemist.
Name of six assistants: Austin, Wayne, Dege, Oscaru, Lingard, and Rojo.
He left a note "76-20-44 79-16-22-7"

A local detective Jack was called to solve the case,

After reading the note, Jack instantly asked the police to arrest the murderers.

Who are the murderers?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

There is a place where if I stand up straight, I will still be considered sideways.

Replace the question mark with the correct number in below Picture:

One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?