The Little ant seems to be always confused. Do you know why?

On a magical land of Mexico , all the animal in the land are rational.

There are 10 tigers and one goat.
Tiger can eat goat but since it's a magical land , the tiger who eats the goat , turns into goat and then can be eaten by the remaining tiger(s).

If we leave them for some time then how many goat and tiger will be there , when we come back ?

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?

A mathematics teacher took exams for his students. Out of the total students, 25% passed both the tests included in the exam. However, only 42% were able to clear the first test.

Can you find out the percentage of those students who passed the first test and also passed the second test?

Can you move 2 matchsticks to form four equal sized squares.

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

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

Solve the mathematical equation in the picture below.

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?