Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

When can we add 2 to 11 and get 1 as the correct answer?

What is the coolest letter in the alphabet?

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

What runs around the whole yard without moving?

A river should be crossed by a father, a mother and their two sons and two daughters.
There are some rules that should be followed while crossing the river. There can be only two people in the raft while crossing. The daughters cannot be with their father unless there is the presence of the mother. The sons cannot be with their mothers unless the father is present. Unless the guard is on the board, the criminals cannot be with any of the family members. Only the adults like the father, the guard, and the mother knows to use the raft.

How will they cross the river?

What can you serve, but never eat?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?

What is 3/7 chicken, 2/3 cat and 2/4 goat?