IN: Is it true that can a country have both a president and a prime minister?

A semi-presidential system or dual executive system is a system of government in which a president exists alongside a prime minister and a cabinet, with the latter being responsible for the legislature of a state. It differs from a parliamentary republic in that it has a popularly elected head of state, who is more than a purely ceremonial figurehead, and from the presidential system in that the cabinet, although named by the president, is responsible to the legislature, which may force the cabinet to resign through a motion of no confidence.

OUT: yes

IN: Is it true that do all neurons have the same action potential?

In the early development of many organisms, the action potential is actually initially carried by calcium current rather than sodium current. The opening and closing kinetics of calcium channels during development are slower than those of the voltage-gated sodium channels that will carry the action potential in the mature neurons. The longer opening times for the calcium channels can lead to action potentials that are considerably slower than those of mature neurons. Xenopus neurons initially have action potentials that take 60--90 ms. During development, this time decreases to 1 ms. There are two reasons for this drastic decrease. First, the inward current becomes primarily carried by sodium channels. Second, the delayed rectifier, a potassium channel current, increases to 3.5 times its initial strength.

OUT: no

IN: Is it true that is there a train station on hayling island?

A railway to the island was active in the 19th and 20th centuries. It opened on 17 July 1867, co-inciding with the local races. Terrier steam locomotives pulled carriages along the 5-mile (8 km) Hayling Billy Line from Havant Station on the mainland to a station which was located at the northern end of Staunton Avenue, passing through Langstone where there was a Halt. The railway was popular with tourists throughout the summer, though it saw little service in winter, and at peak times ran up to 24 services per day. Despite its popularity, the line was marked for closure in the Beeching Report due to the prohibitive cost of replacing Langstone Bridge that connected the island to the mainland, estimated at up to 400,000 to repair. Services ended on 3 November 1963, and the bridge was demolished in 1966. The only remaining railway building, a goods shed, has now been converted into a theatre which is run by HIADS.

OUT: no

IN: Is it true that can you use an adjective as a noun?

Adjectival noun is a term that was formerly synonymous with noun adjunct but is now usually used to mean ''an adjective used as a noun'' (i.e. the opposite process, as in the Irish meaning ''Irish people'' or the poor meaning ''poor people''). Japanese adjectival nouns are a different concept.

OUT:
yes