It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

Keyboard words are not in alphabetical order, Why?

In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

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

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

When it is alive we sing, when it is dead we clap our hands. What is it?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

1 rabbit saw 9 elephants while going to the river. Every elephant saw 3 monkeys going toward the river. Each monkey had 1 parrot in each hand. How many animals are going towards the river?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

Can you count the number of blocks in the picture below?