I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

Can you find the 09 errors in the picture below?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

Can you find the key in the picture below?

Which tank will fill first?

What has one eye, but can’t see?

Count the number of triangles in the given picture.

An evil man kidnapped someone and made them take one of two pills. One was harmless, but the other was poisonous. Whichever pill the victim took, the kidnapper took the other one. The victim took their pill with water and died. The kidnapper survived. How did the kidnapper get the harmless pill?

Replace the (?) with the correct mathematical signs to make the expression equal to 59.

18 ? 12 ? 4 ? 5 = 59

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?